{"title":"Battery Tender","description":null,"products":[{"product_id":"charge-n-start-4120-4-amp-battery-charger-1200-amp-jump-starter","title":"Charge N Start 4120 — 4 Amp Battery Charger \u0026 1200 Amp Jump Starter","description":"\u003cp\u003eThe most capable unit in the Charge N Start lineup. The Battery Tender® Charge N Start 4120 combines a 4 Amp ISM smart battery charger with 1200 Amps of portable lithium jump starting power — four times the charging output of the CNS 1100 and 1120, same 1200 Amp jump starting power as the CNS 1120. Faster battery recovery for larger vehicles. Maximum jump starting power. The complete battery charger and jump starter solution in one portable unit.\u003c\/p\u003e\u003ch3\u003eTwo Devices. Maximum Output. One Unit.\u003c\/h3\u003e\u003cp\u003eAs a \u003cstrong\u003e4 Amp ISM smart battery charger and maintainer\u003c\/strong\u003e, it recovers and maintains larger automotive batteries significantly faster than 1 Amp alternatives. As a \u003cstrong\u003e1200 Amp portable lithium jump starter\u003c\/strong\u003e, it starts full-size vehicles with gas engines up to 6.0L and diesel engines up to 4.0L without jumper cables or a second vehicle.\u003c\/p\u003e\u003ch3\u003eHow to Jump Start a Car — 1200 Amps Without Jumper Cables\u003c\/h3\u003e\u003cp\u003eJump starting a dead car battery with the CNS 4120:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eConnect the red jump start clamp to the positive (+) terminal on the dead battery\u003c\/li\u003e\n\u003cli\u003eConnect the black jump start clamp to a ground point or the negative (−) terminal\u003c\/li\u003e\n\u003cli\u003eSpark-proof technology confirms connection — reverse polarity protection prevents damage from incorrect connections\u003c\/li\u003e\n\u003cli\u003eCrank for up to 5 seconds per attempt with 30 seconds between attempts\u003c\/li\u003e\n\u003cli\u003eOnce running, disconnect and store\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eNo second vehicle. No cable management. 1200 Amps handles the full range of passenger cars, trucks, and SUVs with gas engines up to 6.0L and diesel engines up to 4.0L.\u003c\/p\u003e\u003ch3\u003eHow to Jump Start a Motorcycle, ATV, or Powersports Vehicle\u003c\/h3\u003e\u003cp\u003eThe CNS 4120's 1200 Amp lithium jump pack is among the most powerful portable motorcycle and powersports jump starters available — more than sufficient for any 12V powersports battery:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eAccess the battery — remove the seat or open the battery compartment\u003c\/li\u003e\n\u003cli\u003eConnect the red jump start clamp to the positive (+) terminal\u003c\/li\u003e\n\u003cli\u003eConnect the black clamp to a clean frame ground point or the negative (−) terminal\u003c\/li\u003e\n\u003cli\u003eCrank for no more than 3–5 seconds — small powersports batteries respond immediately to lithium jump pack power\u003c\/li\u003e\n\u003cli\u003eOnce running, disconnect and secure the compartment\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eThe CNS 4120's 4 Amp ISM charger is particularly well-suited for powersports applications where the battery is used infrequently and benefits from faster recovery after seasonal storage. Motorcycles, ATVs, UTVs, side-by-sides, personal watercraft, and snowmobiles stored for weeks or months are among the highest-risk dead battery scenarios — ISM maintenance charging at 4 Amps keeps them at full capacity and reduces the need for the jump start function over time.\u003c\/p\u003e\u003ch3\u003eHow to Jump Start a Truck or Large SUV\u003c\/h3\u003e\u003cp\u003eFor full-size trucks, diesel pickups, and large SUVs with high-capacity batteries, the 4 Amp charger recovers depleted batteries more than three times faster than 1 Amp alternatives, and 1200 Amps provides ample cranking power for cold starts and marginally charged batteries:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eLocate the battery — typically under the hood, occasionally in the truck bed or under the seat\u003c\/li\u003e\n\u003cli\u003eConnect red clamp to positive (+), black clamp to ground or negative (−)\u003c\/li\u003e\n\u003cli\u003eSpark-proof confirmation before current flows\u003c\/li\u003e\n\u003cli\u003eCrank for up to 5 seconds with 30-second intervals between attempts\u003c\/li\u003e\n\u003cli\u003eDisconnect once running\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eCNS 4120 vs CNS 1120 — Why 4 Amp Charging Matters\u003c\/h3\u003e\u003cp\u003eBoth units deliver 1200 Amps of jump starting power. The CNS 4120's 4 Amp charger recovers large automotive batteries more than three times faster during bulk charge — meaningful for trucks, SUVs, RVs, and boats where 1 Amp recovery takes significantly longer.\u003c\/p\u003e\u003ch3\u003eTwo Separate Clamp Sets — Not Interchangeable\u003c\/h3\u003e\u003cp\u003eDedicated charging clamps for ISM maintenance. Dedicated jump start clamps for 1200 Amp cranking. Not interchangeable — engineered for their specific functions.\u003c\/p\u003e\u003ch3\u003eInternal Lithium Jump Pack — Auto-Switch Keeps It Ready\u003c\/h3\u003e\u003cp\u003eThe Charge N Start 4120 automatically switches between charging the external vehicle battery and topping up the internal jump pack when it detects the internal level has dropped — ensuring 1200 Amps of jump starting power is always available when needed.\u003c\/p\u003e\u003ch3\u003eThe Prevention and the Cure — At Full Output\u003c\/h3\u003e\u003cp\u003e4 Amp ISM prevents sulfation across all battery sizes. 1200 Amp jump pack handles unexpected failures. One unit, both outcomes, maximum output.\u003c\/p\u003e\u003ch3\u003eMulti-Chemistry Charging: Lead-Acid and Lithium\u003c\/h3\u003e\u003cp\u003eThe 4 Amp smart charger supports both lead-acid and Lithium (LiFePO4) battery chemistries with a manual selector delivering the correct ISM charging profile for each type. Compatible battery size range: 14Ah to 100Ah at 12V. Lead-acid: flooded, AGM, gel cell, sealed MF. Lithium: LiFePO4.\u003c\/p\u003e\u003ch3\u003eISM: 4-Stage Smart Charging at 4 Amps\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Battery health check and polarity confirmation before charging begins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 4 Amp output restores depleted capacity efficiently\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers automatically as the battery approaches full charge, preventing overcharge damage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Correct maintenance protocol for the selected chemistry delivered 24\/7, indefinitely\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Vehicles\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePassenger cars and trucks up to 6.0L gas \/ 4.0L diesel\u003c\/li\u003e\n\u003cli\u003eMotorcycles and touring bikes\u003c\/li\u003e\n\u003cli\u003eATVs, UTVs, and off-road vehicles\u003c\/li\u003e\n\u003cli\u003eBoats and marine vessels\u003c\/li\u003e\n\u003cli\u003eRVs and campers\u003c\/li\u003e\n\u003cli\u003eAny 12V lead-acid or Lithium battery from 14Ah to 100Ah\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Lithium Outperforms Lead-Acid Jump Boxes\u003c\/h3\u003e\u003cp\u003eConsistent peak Amps in cold weather when lead-acid units lose capacity most. Months of charge retention in storage. Fraction of the weight of lead-acid units. Stays ready through continuous wall-connected maintenance charging without degradation.\u003c\/p\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof connection on both clamp sets\u003c\/strong\u003e — no current flows until connection is confirmed correct\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eReverse polarity protection on both clamp sets\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOvercurrent protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eETL and CETL certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e1-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607545988,"sku":"030-7020-WH","price":179.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/030-7020-WH_wClips.jpg?v=1788869260"},{"product_id":"charge-n-start-1120-1-amp-battery-charger-1200-amp-jump-starter","title":"Charge N Start 1120 — 1 Amp Battery Charger \u0026 1200 Amp Jump Starter","description":"\u003cp\u003eThe Battery Tender® Charge N Start 1120 is the smart battery charger, maintainer, and portable jump starter that prevents the dead battery and handles it when prevention wasn't enough — with 1200 Amps of lithium jump starting power for gas engines up to 6.0L and diesel engines up to 4.0L. More jump starting power than the CNS 1100, same 1 Amp ISM smart charging, and the same auto-switching internal lithium pack that stays fully charged and always ready.\u003c\/p\u003e\u003ch3\u003eTwo Devices. One Unit. Complete Battery Coverage.\u003c\/h3\u003e\u003cp\u003eAs a \u003cstrong\u003e1 Amp ISM smart battery charger and maintainer\u003c\/strong\u003e, it keeps the vehicle battery at 100% through Battery Tender® ISM technology. As a \u003cstrong\u003e1200 Amp portable lithium jump starter\u003c\/strong\u003e, the internal pack delivers full-size vehicle starting power for gas engines up to 6.0L and diesel engines up to 4.0L — without jumper cables or a second vehicle.\u003c\/p\u003e\u003ch3\u003eHow to Jump Start a Car Without Jumper Cables\u003c\/h3\u003e\u003cp\u003eJump starting a dead car battery takes under two minutes:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eConnect the red jump start clamp to the positive (+) terminal on the dead battery\u003c\/li\u003e\n\u003cli\u003eConnect the black jump start clamp to a ground point or the negative (−) terminal\u003c\/li\u003e\n\u003cli\u003eSpark-proof system confirms connection before any current flows\u003c\/li\u003e\n\u003cli\u003eCrank for up to 5 seconds — most vehicles start within 1–3 attempts\u003c\/li\u003e\n\u003cli\u003eDisconnect clamps and store\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eNo second vehicle. No jumper cable sequence. 1200 Amps handles full-size trucks and SUVs with gas engines up to 6.0L and diesel engines up to 4.0L.\u003c\/p\u003e\u003ch3\u003eHow to Jump Start a Motorcycle, ATV, or Powersports Vehicle\u003c\/h3\u003e\u003cp\u003eAt 1200 peak Amps, the CNS 1120 is a significantly overpowered motorcycle jump starter — more than enough to start any powersports battery quickly and safely:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eAccess the battery — remove the seat or open the battery compartment as needed\u003c\/li\u003e\n\u003cli\u003eConnect the red jump start clamp to the positive (+) terminal\u003c\/li\u003e\n\u003cli\u003eConnect the black clamp to a clean ground point on the frame or the negative (−) terminal\u003c\/li\u003e\n\u003cli\u003eCrank for no more than 3–5 seconds — powersports batteries are small and recover from a lithium jump pack quickly\u003c\/li\u003e\n\u003cli\u003eOnce running, disconnect and secure the battery compartment\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eATVs, UTVs, side-by-sides, dirt bikes, and personal watercraft with 12V batteries are all compatible with the CNS 1120 jump start function. These vehicles are among the most common seasonal storage scenarios where ISM maintenance charging provides the highest value — keeping the battery at full charge through months of inactivity so the jump start function is rarely needed.\u003c\/p\u003e\u003ch3\u003eCNS 1120 vs CNS 1100 — Why 1200 Amps\u003c\/h3\u003e\u003cp\u003eBoth units share the 1 Amp ISM smart charger. The CNS 1120 steps up to 1200 Amps — providing additional cranking capacity for full-size trucks, SUVs, larger engines, and cold-weather starts where extra peak Amps make the difference.\u003c\/p\u003e\u003ch3\u003eTwo Separate Clamp Sets — Not Interchangeable\u003c\/h3\u003e\u003cp\u003eDedicated charging clamps for ISM maintenance. Dedicated jump start clamps for 1200 Amp cranking. Not interchangeable — engineered for their specific functions.\u003c\/p\u003e\u003ch3\u003eInternal Lithium Jump Pack — Auto-Switch Keeps It Ready\u003c\/h3\u003e\u003cp\u003eThe Charge N Start 1120 automatically switches between charging the external vehicle battery and topping up the internal jump pack when it detects the internal level has dropped — ensuring 1200 Amps of jump starting power is always available when needed. Both functions stay operational without separate charging sessions or devices.\u003c\/p\u003e\u003ch3\u003eThe Prevention and the Cure\u003c\/h3\u003e\u003cp\u003eISM prevents sulfation — the permanent, irreversible cause of most dead batteries in stored vehicles. When unexpected failures occur, 1200 Amps handles the start. One unit covers both outcomes.\u003c\/p\u003e\u003ch3\u003eMulti-Chemistry Charging: Lead-Acid and Lithium\u003c\/h3\u003e\u003cp\u003eThe 1 Amp smart charger supports both lead-acid and Lithium (LiFePO4) battery chemistries with a manual selector delivering the correct ISM charging profile for each type. Compatible battery size range: 14Ah to 80Ah at 12V. Lead-acid: flooded, AGM, gel cell, sealed MF. Lithium: LiFePO4.\u003c\/p\u003e\u003ch3\u003eISM: 4-Stage Smart Charging\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Battery health check before charging begins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 1 Amp output restores depleted capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers automatically as the battery approaches full charge, preventing overcharge damage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Micro-current delivered 24\/7 maintains peak voltage indefinitely without overcharging\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Vehicles\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePassenger cars and trucks up to 6.0L gas \/ 4.0L diesel\u003c\/li\u003e\n\u003cli\u003eMotorcycles and touring bikes\u003c\/li\u003e\n\u003cli\u003eATVs, UTVs, and powersports vehicles\u003c\/li\u003e\n\u003cli\u003eBoats and personal watercraft\u003c\/li\u003e\n\u003cli\u003eRVs and campers\u003c\/li\u003e\n\u003cli\u003eAny 12V lead-acid or Lithium battery from 14Ah to 80Ah\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Lithium Jump Starters Outperform Lead-Acid Jump Boxes\u003c\/h3\u003e\u003cp\u003eLithium delivers consistent peak Amp output in cold weather when lead-acid units lose capacity most, holds charge for months in storage, and weighs significantly less than equivalent lead-acid jump boxes — staying ready through extended wall-connected maintenance charging without degradation.\u003c\/p\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof connection on both clamp sets\u003c\/strong\u003e — no current flows until connection is confirmed correct\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eReverse polarity protection on both clamp sets\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOvercurrent protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eETL and CETL certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e1-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607480452,"sku":"030-7012-WH","price":149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/030-7012-WH_wClips.jpg?v=1788869260"},{"product_id":"hyperion-lift-assist™-portable-tire-inflator","title":"Hyperion Lift-Assist™ Portable Tire Inflator","description":"\u003cp\u003eThe Hyperion Lift-Assist™ Portable Tire Inflator is a cordless, rechargeable 12V inflator that goes wherever you do — vehicle and motorcycle tires, bicycles, and inflatable toys or sports balls. It reaches 0 to 35 PSI on a standard 195\/65 R15 tire in about 8 minutes, and the digital display shows both current pressure and your preset target, stopping automatically when it is reached.\u003c\/p\u003e\u003cp\u003eRechargeable, compact, and glovebox-friendly. Backed by Battery Tender® lifetime customer support.\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607447684,"sku":"044-1002-HY-WH","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-hyperion-lift-assist-portable-tire-inflator-044-1002-hy-wh-59501659062641.jpg?v=1788869260"},{"product_id":"charge-n-start-1100-1-amp-battery-charger-1000-amp-jump-starter","title":"Charge N Start 1100 — 1 Amp Battery Charger \u0026 1000 Amp Jump Starter","description":"\u003cp\u003eThe Battery Tender® Charge N Start 1100 is the only product that prevents a dead battery and jump starts one when prevention wasn't enough. A 1 Amp ISM (Infinite Sequential Monitoring™) smart battery charger and maintainer combined with a 1000 Amp portable lithium jump starter — two devices that every vehicle owner should have, built into one unit. Connect it to the wall and it keeps the battery at 100%. Carry it with you and it jump starts the engine when the battery fails anyway.\u003c\/p\u003e\u003ch3\u003eTwo Functions That Belong Together\u003c\/h3\u003e\u003cp\u003eDead batteries happen two ways: storage discharge that ISM maintenance prevents, and unexpected failures that a jump starter handles. The Charge N Start 1100 covers both. As a \u003cstrong\u003esmart battery charger and maintainer\u003c\/strong\u003e, it uses Battery Tender® ISM technology to maintain the vehicle battery at peak capacity indefinitely. As a \u003cstrong\u003e1000 Amp portable lithium jump starter\u003c\/strong\u003e, the internal battery pack delivers enough cranking power to start most passenger cars, motorcycles, ATVs, and powersports vehicles when the unexpected happens.\u003c\/p\u003e\u003ch3\u003eHow to Jump Start a Car With the Charge N Start 1100\u003c\/h3\u003e\u003cp\u003eJump starting a car without jumper cables takes under two minutes:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eConnect the red jump start clamp to the positive (+) terminal on the dead battery\u003c\/li\u003e\n\u003cli\u003eConnect the black jump start clamp to a ground point or the negative (−) terminal\u003c\/li\u003e\n\u003cli\u003eSpark-proof technology confirms connection before any current flows\u003c\/li\u003e\n\u003cli\u003eStart the vehicle — crank for up to 5 seconds per attempt with 30 seconds between attempts\u003c\/li\u003e\n\u003cli\u003eDisconnect the clamps and store\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eNo second vehicle. No jumper cables. 1000 Amps starts most passenger cars and compact SUVs with gas engines up to V6 and diesel engines up to 3.0L.\u003c\/p\u003e\u003ch3\u003eHow to Jump Start a Motorcycle, ATV, or Powersports Vehicle\u003c\/h3\u003e\u003cp\u003eMotorcycles, ATVs, UTVs, and powersports vehicles have smaller batteries than cars — the CNS 1100's 1000 Amp jump pack provides far more cranking power than needed, making it one of the most capable portable motorcycle jump starters available:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eAccess the battery — on most motorcycles this means removing the seat; on ATVs and UTVs the battery is typically in a compartment under the seat or hood\u003c\/li\u003e\n\u003cli\u003eConnect the red jump start clamp to the positive (+) terminal\u003c\/li\u003e\n\u003cli\u003eConnect the black clamp to a ground point on the frame or the negative (−) terminal\u003c\/li\u003e\n\u003cli\u003eAttempt to start — crank for no more than 3–5 seconds; powersports batteries are small and recover quickly\u003c\/li\u003e\n\u003cli\u003eDisconnect and reinstall the seat or cover\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eMotorcycles and powersports vehicles are especially prone to battery discharge from extended storage, GPS systems, security alarms, and intermittent use — the exact use case ISM maintenance charging was designed to prevent.\u003c\/p\u003e\u003ch3\u003eTwo Separate Clamp Sets — Not Interchangeable\u003c\/h3\u003e\u003cp\u003eDedicated charging clamps maintain the vehicle battery through ISM. Dedicated jump start clamps deliver the cranking burst. Not interchangeable — engineered for their specific functions.\u003c\/p\u003e\u003ch3\u003eInternal Lithium Jump Pack — Always Ready\u003c\/h3\u003e\u003cp\u003ePlugging the Charge N Start 1100 into the wall maintains the connected vehicle battery through ISM charging and recharges the internal lithium jump pack simultaneously. The Charge N Start 1100 automatically switches between charging the external vehicle battery and topping up the internal jump pack when it detects the internal level has dropped — ensuring 1000 Amps of jump starting power is always available when needed.\u003c\/p\u003e\u003ch3\u003eThe Prevention and the Cure\u003c\/h3\u003e\u003cp\u003eISM maintenance prevents sulfation — the permanent, irreversible cause of most stored battery failures that require jump starting. When an unexpected failure occurs anyway, the 1000 Amp pack handles the start. One unit, both outcomes covered.\u003c\/p\u003e\u003ch3\u003eMulti-Chemistry Charging: Lead-Acid and Lithium\u003c\/h3\u003e\u003cp\u003eThe 1 Amp smart charger supports both lead-acid and Lithium (LiFePO4) battery chemistries with a manual selector delivering the correct ISM charging profile for each type. Compatible battery size range: 14Ah to 80Ah at 12V. Lead-acid: flooded, AGM, gel cell, sealed MF. 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The Battery Tender® WaveCharge 2-Bank is a marine and automotive-grade on-board charging system delivering two completely independent ISM (Infinite Sequential Monitoring™) charging circuits at 3 Amps each, simultaneously maintaining a starting battery and a house battery without interference between banks.\u003c\/p\u003e\u003ch3\u003eBuilt for Multi-Bank Electrical Systems\u003c\/h3\u003e\u003cp\u003eMany boats and vehicles run at minimum two separate battery banks — a dedicated starting battery for the engine and a house battery bank for electronics, accessories, and auxiliary loads. These batteries have different usage patterns, different charge states, and different maintenance requirements. Connecting them to a single-bank charger either undercharges one or overcharges the other. The WaveCharge 2-Bank runs two independent ISM cycles simultaneously, each responding to its own battery's state at full 3 Amps output.\u003c\/p\u003e\u003ch3\u003eIndependent Banks — Not a Splitter\u003c\/h3\u003e\u003cp\u003eEach bank operates as a complete independent 3 Amp charging circuit. Bank 1 can be in bulk charge recovering a depleted house battery while Bank 2 is in float maintenance on a fully charged starting battery — simultaneously, without output reduction on either bank. This is the critical distinction from shared-output charging systems.\u003c\/p\u003e\u003ch3\u003eMulti-Chemistry: Lead-Acid and Lithium\u003c\/h3\u003e\u003cp\u003eA per-bank chemistry selector delivers the correct ISM profile for either lead-acid or Lithium (LiFePO4) batteries. Each bank is configured independently — Bank 1 can charge a lead-acid starting battery while Bank 2 maintains a Lithium house bank. Full 3 Amps output at the correct chemistry profile on each bank simultaneously.\u003c\/p\u003e\u003ch3\u003eISM: 4-Stage Charging on Each Bank\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Individual battery health check before current flows on each bank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 3 Amps output restores depleted capacity independently\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers per bank as each battery approaches full charge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Correct maintenance protocol for the selected chemistry delivered 24\/7, indefinitely\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCompatible per bank: 14Ah to 100Ah at 12V. Lead-acid: flooded, AGM, gel cell, sealed MF. Lithium: LiFePO4.\u003c\/p\u003e\u003ch3\u003eIP67 Marine and Weatherproof Construction\u003c\/h3\u003e\u003cp\u003eIP67 certification provides complete dust protection and water immersion resistance to 1 meter for 30 minutes. 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The best portable jump starter for drivers, campers, overlanders, and anyone who needs backup power beyond what a phone charger provides.\u003c\/p\u003e\u003ch3\u003e2000 Peak Amps — Maximum Portable Jump Starting Power\u003c\/h3\u003e\u003cp\u003e2000 peak Amps handles the hardest starts — large diesel trucks, full-size SUVs, high-compression engines, cold-weather starts, and deeply discharged batteries in vehicles that have defeated smaller jump starters. Spark-proof connection technology and reverse polarity protection confirm the connection before any current flows, regardless of lighting or urgency.\u003c\/p\u003e\u003ch3\u003e100-Watt AC Inverter — Wall Power Anywhere\u003c\/h3\u003e\u003cp\u003eThe integrated 100W AC inverter converts the 16,000mAh lithium battery pack to standard 120V AC output — powering laptops, power tools, CPAP machines, LED work lights, and any device that requires a wall outlet. For job sites, camping trips, overlanding, tailgating, boat trips, and power outages, the 100W inverter transforms this portable jump starter into a portable power station in a glove-compartment-sized unit.\u003c\/p\u003e\u003cp\u003eThis is what separates the 2000 Amp Power Station from the standard 2000 Amp jump starter — AC power output. For anyone who has ever needed to charge a laptop, run a small appliance, or power equipment away from an outlet, the inverter is the decisive feature.\u003c\/p\u003e\u003ch3\u003eHow to Jump Start a Car Without Jumper Cables\u003c\/h3\u003e\u003cp\u003ePortable lithium jump starters are faster, safer, and more reliable than traditional jumper cables:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eConnect the red clamp to the positive (+) terminal on the dead battery\u003c\/li\u003e\n\u003cli\u003eConnect the black clamp to a ground point or the negative (−) terminal\u003c\/li\u003e\n\u003cli\u003eSpark-proof technology confirms polarity before current flows — reverse polarity protection prevents damage from incorrect connections\u003c\/li\u003e\n\u003cli\u003eStart the vehicle — most engines start within 1–3 attempts; crank for up to 5 seconds and wait 30 seconds between attempts\u003c\/li\u003e\n\u003cli\u003eOnce running, disconnect and store\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eNo second vehicle needed. No cable management. 2000 peak Amps handles the full range of gas and diesel engines in one compact portable unit.\u003c\/p\u003e\u003ch3\u003eThree USB Outputs — Charge Multiple Devices Simultaneously\u003c\/h3\u003e\u003cp\u003eThree USB charging ports deliver simultaneous fast charging for phones, tablets, and accessories from the same 16,000mAh battery that powers the jump starter and inverter. The combination of USB outputs, the 100W AC outlet, and 2000 peak Amp jump starting covers virtually every power need in one portable battery jump starter pack.\u003c\/p\u003e\u003ch3\u003ePortable Power Applications Beyond Jump Starting\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLaptops and work equipment on remote job sites\u003c\/li\u003e\n\u003cli\u003eCPAP and medical devices during travel or power outages\u003c\/li\u003e\n\u003cli\u003eLED work lighting for emergency roadside repairs\u003c\/li\u003e\n\u003cli\u003eCamping and overlanding power for small appliances\u003c\/li\u003e\n\u003cli\u003eTailgating and outdoor events\u003c\/li\u003e\n\u003cli\u003eEmergency backup power during home outages\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Vehicles\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFull-size trucks, diesel pickups, and commercial vehicles\u003c\/li\u003e\n\u003cli\u003eLarge SUVs and passenger cars\u003c\/li\u003e\n\u003cli\u003eMotorcycles and touring bikes\u003c\/li\u003e\n\u003cli\u003eBoats and marine vessels\u003c\/li\u003e\n\u003cli\u003eRVs and campers\u003c\/li\u003e\n\u003cli\u003eATVs, UTVs, and off-road vehicles\u003c\/li\u003e\n\u003cli\u003eAny 12V gas engine up to V8 or diesel engine up to 8.0L\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof clamp technology\u003c\/strong\u003e — no current flows until connection is confirmed correct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection\u003c\/strong\u003e — alerts and prevents current flow if clamps are reversed\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e100W AC inverter surge protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOvercurrent protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOver-temperature protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e1-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607611524,"sku":"030-2040-WH","price":234.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-2000-amp-power-station-with-100-watt-inverter-030-2040-wh-30744385585250.png?v=1788869266"},{"product_id":"battery-tender®-weather-resistant-12v-800ma-battery-charger-and-maintainer","title":"Battery Tender® Weather Resistant 12V 800mA Battery Charger and Maintainer","description":"\u003cp\u003eThe most inconvenient battery to maintain is the one you cannot easily reach — stored in an outdoor shed, kept at a marina slip, locked in a watercraft that only comes out seasonally, or mounted in equipment that lives outside year-round. The Battery Tender® Weather Resistant 12V 800mA goes where standard maintainers cannot: IP67-rated, permanently mountable, and designed to remain connected through rain, humidity, freezing temperatures, and outdoor conditions that would damage or destroy an indoor-only charger.\u003c\/p\u003e\u003ch3\u003eIP67 Weatherproofing — What It Actually Means\u003c\/h3\u003e\u003cp\u003eIP67 is an independent ingress protection rating that certifies complete dust protection and water immersion resistance to 1 meter for 30 minutes. In practical terms, the Battery Tender® Weather Resistant 12V 800mA withstands direct rainfall, splashing, high-pressure spray, condensation, and the humidity extremes of coastal and lakeside storage environments. It can be permanently mounted outdoors — on a wall, post, dock structure, or trailer — and left connected through seasons without any shelter required.\u003c\/p\u003e\u003ch3\u003eISM: Smart Charging in Any Environment\u003c\/h3\u003e\u003cp\u003eWeather resistance without intelligent charging produces nothing more than a weatherproof trickle charger — which still damages batteries connected long-term. The Battery Tender® Weather Resistant uses ISM (Infinite Sequential Monitoring™), Battery Tender®'s proprietary 4-stage algorithm:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Health check and polarity confirmation before current flows\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 800mA output restores depleted capacity efficiently\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers automatically as the battery approaches full charge, preventing overcharge damage regardless of outdoor temperature swings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Precisely regulated micro-current maintains peak battery voltage 24\/7, indefinitely, without overcharging — even when left connected through winter\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 800mA output is optimized for 12V powersports batteries from 3Ah to 30Ah. All standard lead-acid chemistries: flooded, AGM, gel cell, and sealed maintenance-free.\u003c\/p\u003e\u003ch3\u003ePurpose-Built for Outdoor and Permanent Installation\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMotorcycles in open-sided garages or uncovered outdoor spaces\u003c\/li\u003e\n\u003cli\u003eATVs and UTVs in outdoor sheds without climate control\u003c\/li\u003e\n\u003cli\u003ePersonal watercraft at seasonal dock or marina storage\u003c\/li\u003e\n\u003cli\u003eSnowmobiles in unheated outbuildings or pole barns\u003c\/li\u003e\n\u003cli\u003eBoats at outdoor storage facilities or marina slips\u003c\/li\u003e\n\u003cli\u003eLawn equipment in open-air equipment sheds\u003c\/li\u003e\n\u003cli\u003eTrailers with onboard batteries in exposed storage locations\u003c\/li\u003e\n\u003cli\u003eAny application where connecting and disconnecting an indoor charger each session is impractical\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePermanent Mounting — Set Once, Maintain Every Season\u003c\/h3\u003e\u003cp\u003eThe Battery Tender® Weather Resistant includes mounting hardware for permanent installation. Mount it once in the storage location — on the shed wall, the dock structure, a bracket near the storage pad — and connect vehicles each season without relocating the charger. For marina operators and fleet storage facilities, permanently mounted units at each slip or bay eliminate portable charger logistics while ensuring every battery is maintained continuously through off-season storage.\u003c\/p\u003e\u003ch3\u003eOutdoor Temperature Extremes Handled Automatically\u003c\/h3\u003e\u003cp\u003eOutdoor storage means exposure to temperature ranges that cause indoor chargers to fail — hard freezes, humid summers, rapid temperature cycling between day and night. The Battery Tender® Weather Resistant is designed to operate correctly across this full range. Automatic temperature compensation adjusts charge voltage throughout the charging cycle: increasing voltage in cold to ensure a complete charge, reducing in heat to prevent overcharging and gassing. No manual adjustment at any temperature.\u003c\/p\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof connection\u003c\/strong\u003e — No current flows until polarity and connection are confirmed correct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection\u003c\/strong\u003e — Automatic shutdown if clamps are reversed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort-circuit protection\u003c\/strong\u003e — Automatic fault detection and shutdown\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eETL and CETL certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEnd Off-Season Battery Failures Permanently\u003c\/h3\u003e\u003cp\u003eSulfation — the permanent, irreversible hardening of lead sulfate on battery plates from sitting discharged — is the primary cause of battery failure in stored outdoor vehicles and equipment. A single off-season without maintenance charging can sulfate a battery beyond recovery. The Battery Tender® Weather Resistant prevents sulfation entirely through continuous float maintenance, wherever the vehicle is stored. Battery life consistently extends from 2–3 years to 5 years or more. One permanently mounted Weather Resistant unit pays for itself in the first battery replacement it prevents.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLimited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607644292,"sku":"022-0150-DL-WH","price":64.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-weather-resistant-800ma-12v-battery-charger-022-0150-dl-wh-59391667437937.png?v=1788869267"},{"product_id":"battery-tender®-quick-disconnect-battery-voltage-indicator","title":"Battery Tender® Quick Disconnect Battery Voltage Indicator","description":"\u003cp\u003eKnow your battery's state of charge at a glance — without a multimeter, without opening the hood, and without removing the charger. 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Ideal for stored vehicles, seasonal equipment, and any application where periodic battery state monitoring is part of the maintenance routine.\u003c\/p\u003e\u003ch3\u003eSAE Quick Disconnect — Always Connected\u003c\/h3\u003e\u003cp\u003eUses the same SAE J563 quick disconnect connector as all Battery Tender® chargers and accessories. Connects inline with any existing SAE quick disconnect system — attach it to the ring terminal harness and the Battery Tender® charger connects to the indicator's output connector. Monitor voltage and charge in the same connection.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMotorcycles and powersports vehicles in seasonal storage\u003c\/li\u003e\n\u003cli\u003eClassic and collector vehicles monitored periodically during storage\u003c\/li\u003e\n\u003cli\u003eBoats and personal watercraft between uses\u003c\/li\u003e\n\u003cli\u003eAny vehicle where regular battery state monitoring is part of the maintenance routine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cp\u003eAll Battery Tender® chargers with SAE quick disconnect output — Junior family, Plus family, Weather Resistant, Junior Multi-Chemistry, WaveCharge Standard line, and any SAE J563-compatible charger or accessory.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607709828,"sku":"081-0157","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/081-0157WhiteBackground.png?v=1788869267"},{"product_id":"wavecharge-4-bank-12v-12-amp-battery-charger-and-maintainer","title":"WaveCharge 4-Bank 12V 12 Amp Battery Charger and Maintainer","description":"\u003cp\u003eFour battery banks. Four independent ISM charging circuits. The Battery Tender® WaveCharge 4-Bank is the complete on-board charging solution for boats and vehicles with complex multi-bank electrical systems — delivering 3 Amps per bank simultaneously to up to four separate 12V batteries, each running its own ISM (Infinite Sequential Monitoring™) cycle with its own chemistry profile, independently.\u003c\/p\u003e\u003ch3\u003eFour-Bank Charging for Marine and Automotive Applications\u003c\/h3\u003e\u003cp\u003eLarge powerboats, extended-range cruisers, overlanding expedition builds, and custom commercial vehicles running four independent battery banks need four independent charging circuits. The WaveCharge 4-Bank handles all four simultaneously with no output sharing and no inter-bank interference. Each bank charges at its own rate, in its own stage, at its own chemistry setting — exactly as if each battery had its own dedicated charger.\u003c\/p\u003e\u003ch3\u003eFull 3 Amps Output on Every Bank Simultaneously\u003c\/h3\u003e\u003cp\u003eNo bank divides its output with any other. Four independent 3 Amp circuits run simultaneously at full output regardless of what the other banks are doing. A bank in bulk charge recovering a depleted auxiliary battery operates at full 3 Amps without reducing output to the three banks in float maintenance. Complete independence across all four banks at all times.\u003c\/p\u003e\u003ch3\u003eMulti-Chemistry: Lead-Acid and Lithium Per Bank\u003c\/h3\u003e\u003cp\u003eEach of the four banks has its own chemistry selector. A boat or vehicle running two lead-acid banks and two Lithium banks configures each bank independently — the correct ISM profile for each chemistry on each bank, all running simultaneously at full 3 Amps output.\u003c\/p\u003e\u003ch3\u003eISM: 4-Stage Charging on All Four Banks\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Individual health check before current flows on each bank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 3 Amps output per bank independently restores depleted capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers per bank as each battery approaches full charge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Correct protocol for lead-acid or Lithium on each bank, 24\/7, indefinitely\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCompatible per bank: 14Ah to 100Ah at 12V. Lead-acid: flooded, AGM, gel cell, sealed MF. Lithium: LiFePO4.\u003c\/p\u003e\u003ch3\u003eIP67 Marine and Weatherproof Construction\u003c\/h3\u003e\u003cp\u003eIP67 certified for complete dust protection and water immersion resistance. Designed for permanent installation in engine compartments, battery bays, and below-deck or under-vehicle locations where moisture, condensation, and spray are routine operating conditions.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLarge powerboats and cruisers with four-bank electrical systems\u003c\/li\u003e\n\u003cli\u003eBoats with separate starting, house, bow thruster, and trolling or anchor winch batteries\u003c\/li\u003e\n\u003cli\u003eOverlanding and expedition vehicles with four independent battery circuits\u003c\/li\u003e\n\u003cli\u003eCommercial trucks and fleet vehicles with complex multi-bank setups\u003c\/li\u003e\n\u003cli\u003eCamper vans and custom builds requiring simultaneous maintenance of four battery banks\u003c\/li\u003e\n\u003cli\u003eAny four-bank 12V application with any combination of lead-acid and Lithium chemistries\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAutomatic Temperature Compensation\u003c\/h3\u003e\u003cp\u003eAll four banks adjust charge voltage automatically based on ambient temperature for lead-acid applications — ensuring complete charging and preventing overcharge across all banks in any environment.\u003c\/p\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSpark-proof connection on each bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection per bank\u003c\/strong\u003e — incorrect connection on one bank does not affect the remaining three\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection per bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIP67 sealed housing\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e2-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607840900,"sku":"022-1004-DL-WH","price":264.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-wavecharge-4-bank-selectable-12v-or-6v-12-amp-battery-charger-022-1004-dl-wh-59396439605617.png?v=1788869266"},{"product_id":"battery-tender-junior-750ma-12v-battery-charger-and-maintainer","title":"Battery Tender Junior 750mA 12V Battery Charger and Maintainer","description":"\u003cp\u003eFor over 60 years, Battery Tender® has been the battery charger that motorcycle dealers recommend, powersports shops rely on, and owners trust to keep their batteries alive through months of storage. The Battery Tender® Junior 12V 750mA is America's #1 selling battery maintainer — not because it is the cheapest option, but because it works, every time, without supervision.\u003c\/p\u003e\n\u003ch3\u003eWhat It Is\u003c\/h3\u003e\n\u003cp\u003eThe Battery Tender® Junior 12V 750mA is a fully automatic 12V smart battery charger and maintainer for lead-acid, AGM, GEL, and sealed maintenance-free batteries from 3Ah to 30Ah. It is the definitive solution to dead batteries after winter storage — and the smart alternative to basic trickle chargers that damage the batteries they are supposed to maintain.\u003c\/p\u003e\n\u003ch3\u003eWho It Is For\u003c\/h3\u003e\n\u003cp\u003eThe Battery Tender® Junior is purpose-built for powersports and small-vehicle batteries that sit unused for extended periods. If your motorcycle, ATV, or personal watercraft spends winter in storage, one Battery Tender® Junior connected from October to April delivers a fully charged battery in spring — every spring, year after year. For batteries larger than 30Ah or vehicles with high parasitic electrical draws, the Battery Tender® Plus is the correct choice.\u003c\/p\u003e\n\u003ch3\u003eWhy It Beats Every Trickle Charger\u003c\/h3\u003e\n\u003cp\u003eA basic trickle charger delivers constant low current regardless of battery state — connected for weeks, it overcharges, causes excessive gassing, consumes electrolyte, and permanently damages internal plate structure. The Battery Tender® Junior uses ISM (Infinite Sequential Monitoring™), Battery Tender®'s proprietary 4-stage charging algorithm that has protected batteries since 1965:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Performs a health check before charging begins; confirms polarity and battery condition before current flows\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 750mA output efficiently restores depleted capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current automatically reduces as the battery approaches 100% charge, eliminating heat buildup and overcharge damage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Precisely regulated micro-current delivered 24\/7 offsets natural self-discharge, holding the battery at peak voltage indefinitely without overcharging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe result: 100% battery capacity when you return in spring, without a single manual adjustment.\u003c\/p\u003e\n\u003ch3\u003eBattery Chemistry Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe Battery Tender® Junior works with all standard 12V lead-acid battery chemistries:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlooded (wet cell)\u003c\/strong\u003e — Traditional lead-acid batteries requiring ventilation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAGM (Absorbent Glass Mat)\u003c\/strong\u003e — Sealed, spill-proof batteries standard in modern powersports vehicles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGEL\u003c\/strong\u003e — Sealed batteries using gelled electrolyte, found in specialty applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed Maintenance-Free\u003c\/strong\u003e — Factory-sealed batteries requiring no electrolyte service\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatible battery size range: 3Ah to 30Ah at 12V.\u003c\/p\u003e\n\u003ch3\u003eVehicles the Junior Maintains\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMotorcycles and touring bikes\u003c\/li\u003e\n\u003cli\u003eATVs and UTVs\u003c\/li\u003e\n\u003cli\u003eDirt bikes and off-road vehicles\u003c\/li\u003e\n\u003cli\u003eScooters and mopeds\u003c\/li\u003e\n\u003cli\u003ePersonal watercraft\u003c\/li\u003e\n\u003cli\u003eSnowmobiles\u003c\/li\u003e\n\u003cli\u003eLawnmowers and garden tractors\u003c\/li\u003e\n\u003cli\u003eClassic and collector cars with 12V batteries up to 30Ah\u003c\/li\u003e\n\u003cli\u003eBoats and marine vessels with small 12V house batteries\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAutomatic Temperature Compensation\u003c\/h3\u003e\n\u003cp\u003eCold reduces electrolyte conductivity and requires higher voltage to achieve full charge. Heat accelerates overcharge risk and electrolyte evaporation. The Battery Tender® Junior automatically adjusts charge voltage based on ambient temperature throughout the full charging cycle — increasing output in extreme cold to ensure a complete charge, reducing it in summer heat to prevent damage. No manual adjustment required at any temperature, any season.\u003c\/p\u003e\n\u003ch3\u003eSafety Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof connection\u003c\/strong\u003e — No current flows through the clamps until polarity and connection are confirmed correct, eliminating connection sparks that can ignite battery hydrogen gas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection\u003c\/strong\u003e — Unit will not charge if clamps are reversed, protecting battery and vehicle electronics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort-circuit protection\u003c\/strong\u003e — Automatic shutdown if an output fault is detected\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eETL and CETL certified\u003c\/strong\u003e — Independently tested and certified for safety in the United States and Canada\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eStop Buying Dead Batteries Every Spring\u003c\/h3\u003e\n\u003cp\u003eSulfation is the primary cause of premature battery failure in stored vehicles — the permanent, irreversible hardening of lead sulfate crystals on battery plates that occurs when a battery sits discharged. Unlike surface corrosion, sulfation is a structural change to the battery's lead plates. Once it forms to any significant degree, it cannot be dissolved or reversed by any charger; the battery's effective capacity is permanently reduced. The Battery Tender® Junior prevents sulfation from forming in the first place by maintaining continuous float voltage from the moment it is connected. Battery life consistently extends from 2–3 years to 5 years or more.\u003c\/p\u003e\n\u003cp\u003eA dead battery in spring is not bad luck — it is a preventable failure. One Battery Tender® Junior, connected each fall, eliminates it entirely.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Year Limited Warranty | DeLand, Florida Since 1965 | 021-0123\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607808132,"sku":"021-0123","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-battery-tender-junior-750ma-12v-battery-charger-and-maintainer-021-0123-59387672723825.png?v=1788869266"},{"product_id":"wavecharge-3-bank-12v-9-amp-battery-charger-and-maintainer","title":"WaveCharge 3-Bank 12V 9 Amp Battery Charger and Maintainer","description":"\u003cp\u003eThree battery banks. Three independent ISM charging circuits. The Battery Tender® WaveCharge 3-Bank delivers simultaneous independent charging at 3 Amps per bank to boats and vehicles running a starting battery, a house battery bank, and a dedicated electronics, trolling motor, or auxiliary battery — each maintained with the correct chemistry profile and charge stage without interference from the others.\u003c\/p\u003e\u003ch3\u003eThree-Bank Charging for Marine and Automotive Applications\u003c\/h3\u003e\u003cp\u003eLarger powerboats, cruising sailboats, overlanding vehicles, and custom builds with dedicated accessory battery systems routinely run three separate 12V battery banks with different usage patterns and charge requirements. The WaveCharge 3-Bank runs three completely independent ISM cycles at full 3 Amps output per bank — three batteries charging at their own rate, in their own stage, with their own chemistry profile, simultaneously.\u003c\/p\u003e\u003ch3\u003eIndependent Banks at Full Output\u003c\/h3\u003e\u003cp\u003eNo bank shares output with another. Each of the three banks runs its own complete 3 Amp ISM circuit independently. A bank recovering a depleted trolling motor or auxiliary battery at full 3 Amps bulk charge does not reduce output available to the bank holding a fully charged starting battery in float maintenance. All three banks operate at full capacity simultaneously.\u003c\/p\u003e\u003ch3\u003eMulti-Chemistry: Lead-Acid and Lithium Per Bank\u003c\/h3\u003e\u003cp\u003eEach bank has its own chemistry selector — lead-acid or Lithium (LiFePO4). A boat or vehicle running a lead-acid starting battery, a lead-acid house bank, and a Lithium auxiliary battery can configure each bank independently for the correct charging profile. Full 3 Amps output at the correct chemistry and maintenance protocol on all three banks simultaneously.\u003c\/p\u003e\u003ch3\u003eISM: 4-Stage Charging on Each of Three Banks\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Individual health check before current flows on each bank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 3 Amps output per bank restores depleted capacity independently\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers per bank as each battery approaches full charge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Correct protocol for lead-acid or Lithium on each bank, 24\/7, indefinitely\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCompatible per bank: 14Ah to 100Ah at 12V. Lead-acid: flooded, AGM, gel cell, sealed MF. Lithium: LiFePO4.\u003c\/p\u003e\u003ch3\u003eIP67 Marine and Weatherproof Construction\u003c\/h3\u003e\u003cp\u003eIP67 certified for complete dust protection and water immersion resistance to 1 meter for 30 minutes. Designed for permanent installation in engine compartments, battery bays, and below-deck or under-vehicle locations where moisture exposure is routine.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBoats with three-bank electrical systems\u003c\/li\u003e\n\u003cli\u003eTrucks, SUVs, and overlanding vehicles with starting, house, and auxiliary battery banks\u003c\/li\u003e\n\u003cli\u003eCamper vans and custom builds with three independent battery circuits\u003c\/li\u003e\n\u003cli\u003eRVs and campers with separate starting, house, and chassis battery banks\u003c\/li\u003e\n\u003cli\u003eAny three-bank 12V application with mixed or matched battery chemistries\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAutomatic Temperature Compensation\u003c\/h3\u003e\u003cp\u003eEach bank adjusts charge voltage automatically based on ambient temperature for lead-acid applications — ensuring correct charging across all three banks in any environment.\u003c\/p\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSpark-proof connection on each bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eReverse polarity protection per bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection per bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIP67 sealed housing\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e2-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607775364,"sku":"022-1003-DL-WH","price":214.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-wavecharge-3-bank-selectable-12v-or-6v-9-amp-battery-charger-022-1003-dl-wh-59396436427121.png?v=1788869266"},{"product_id":"jump-n-start-2000-amp-lithium-jump-starter","title":"Jump N Start 2000 Amp Lithium Jump Starter","description":"\u003cp\u003eMaximum portable jump starting power. The Battery Tender® 2000 Amp Lithium Jump Starter delivers 2000 peak Amps of cranking power for any 12V gas or diesel engine up to V8 — the highest-output standard portable jump starter in the Battery Tender® lineup. For full-size diesel trucks, large engines, extreme cold weather starts, and vehicles that have defeated lower-output jump starters before, 2000 Amps is the specification that starts what others cannot. Backed by a 16,000mAh power bank for multiple jump start cycles and serious device charging capacity.\u003c\/p\u003e\u003ch3\u003e2000 Peak Amps — When Lower-Output Jump Starters Fall Short\u003c\/h3\u003e\u003cp\u003eThere are situations where 600, 800, or even 1500 Amp units are not enough: large displacement diesel pickups, high-compression performance engines, deeply discharged batteries in extreme cold, and vehicles that simply require more cranking power to turn over. 2000 peak Amps is the specification built for those situations — and for drivers who want to carry the most capable portable car battery jump starter available without commercial-grade equipment.\u003c\/p\u003e\u003ch3\u003e16,000mAh Lithium Battery Pack\u003c\/h3\u003e\u003cp\u003eThe 16,000mAh internal lithium battery is the largest capacity in the Battery Tender® portable jump starter lineup — providing more stored energy for more jump start cycles per charge and more USB device charging capacity. For drivers managing multiple vehicles or for commercial use where the jump starter may be used frequently, the larger battery means less time recharging and more time ready.\u003c\/p\u003e\u003ch3\u003eHow to Jump Start a Car — Faster Than Jumper Cables\u003c\/h3\u003e\u003cp\u003eJump starting a car with a portable battery jump starter is safer and faster than traditional jumper cables:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eConnect the red clamp to the positive (+) terminal on the dead battery\u003c\/li\u003e\n\u003cli\u003eConnect the black clamp to a ground point or the negative (−) terminal\u003c\/li\u003e\n\u003cli\u003eThe spark-proof safety system confirms polarity before any current flows — no guessing, no risk of reverse connection\u003c\/li\u003e\n\u003cli\u003eAttempt to start the vehicle — crank for up to 5 seconds, wait 30 seconds between attempts\u003c\/li\u003e\n\u003cli\u003eOnce running, disconnect clamps and store the unit\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eTraditional jumper cables require a second vehicle with a charged battery, nose-to-nose positioning, and the correct connection order. The Battery Tender® 2000 Amp portable jump starter requires none of that — and at 2000 peak Amps, handles engines that most portable units cannot.\u003c\/p\u003e\u003ch3\u003eLithium vs. Lead-Acid Jump Starters\u003c\/h3\u003e\u003cp\u003eLead-acid jump boxes are heavy, lose charge rapidly in storage, and lose output significantly in cold temperatures — the exact conditions when a dead battery is most likely and most urgent. The Battery Tender® 2000 Amp lithium jump starter maintains consistent peak Amp output in cold weather, holds charge for months between uses, and weighs a fraction of equivalent lead-acid units.\u003c\/p\u003e\u003ch3\u003eUSB Power Bank — Daily Carry Justification\u003c\/h3\u003e\u003cp\u003eMultiple USB outputs charge phones, tablets, and electronics from the 16,000mAh lithium battery between jump starts — making the 2000 Amp a portable power bank with a jump starting function rather than an emergency device that sits unused. A device used daily is a device kept charged.\u003c\/p\u003e\u003ch3\u003eCompatible Vehicles\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFull-size trucks, diesel pickups, and large SUVs\u003c\/li\u003e\n\u003cli\u003ePassenger cars and sedans\u003c\/li\u003e\n\u003cli\u003eMotorcycles and touring bikes\u003c\/li\u003e\n\u003cli\u003eBoats and marine vessels\u003c\/li\u003e\n\u003cli\u003eRVs and campers\u003c\/li\u003e\n\u003cli\u003eATVs, UTVs, and off-road vehicles\u003c\/li\u003e\n\u003cli\u003eAny 12V gas engine up to V8 or diesel engine up to 8.0L\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof clamp technology\u003c\/strong\u003e — no current flows until connection is confirmed correct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection\u003c\/strong\u003e — alerts and prevents current flow if clamps are reversed\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOvercurrent protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOver-temperature protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e1-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607873668,"sku":"030-2030-WH","price":179.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-2000-amp-jump-starter-16000mah-power-bank-030-2030-wh-30744384340066.png?v=1788869267"},{"product_id":"battery-tender®-12v-6v-battery-tester","title":"Battery Tender® 12V \/ 6V Battery Tester","description":"\u003cp\u003eThe Battery Tender® 12V \/ 6V Battery Tester is the fastest way to assess battery health before a storage season, after a long discharge, or when a battery is not holding charge as expected. Designed for both 12V and 6V lead-acid batteries, it provides an immediate read of battery voltage and charge state — no multimeter knowledge required, no complex settings, no waiting.\u003c\/p\u003e\u003ch3\u003eWho It's For\u003c\/h3\u003e\u003cp\u003eAny vehicle owner who maintains a battery-dependent fleet — multiple motorcycles, ATVs, boats, classic cars, or seasonal equipment — benefits from a dedicated battery tester. Knowing whether a battery is fully charged, partially discharged, or permanently sulfated before connecting a charger saves time and identifies batteries that need replacement rather than maintenance. The Battery Tender® 12V \/ 6V Battery Tester answers the most important battery question — is this battery worth charging or does it need to be replaced?\u003c\/p\u003e\u003ch3\u003e6V and 12V Compatibility\u003c\/h3\u003e\u003cp\u003eThe same tester works with all 6V lead-acid batteries found in vintage vehicles and pre-1960s equipment, and all standard 12V lead-acid batteries used in modern automotive and powersports applications — flooded, AGM, gel cell, and sealed maintenance-free. One tool covers the entire fleet regardless of battery voltage.\u003c\/p\u003e\u003ch3\u003eEasy to Read, Easy to Use\u003c\/h3\u003e\u003cp\u003eConnect the test leads to the battery terminals — red to positive, black to negative — and read the result. The display provides an immediate voltage reading and charge state indication, making battery assessment accessible without automotive electrical training. No calibration, no warm-up, no complex menu navigation.\u003c\/p\u003e\u003ch3\u003eWhen to Test\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBefore connecting a battery maintainer to a stored vehicle — confirm the battery is in recoverable condition\u003c\/li\u003e\n\u003cli\u003eAfter retrieving a vehicle from extended storage — verify the Battery Tender® maintained the battery correctly\u003c\/li\u003e\n\u003cli\u003eWhen a battery shows signs of reduced performance — identify whether charging or replacement is the correct solution\u003c\/li\u003e\n\u003cli\u003eAs part of seasonal vehicle preparation — assess the health of every battery in the fleet before the season begins\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Battery Types\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e6V lead-acid: flooded, AGM, gel cell\u003c\/li\u003e\n\u003cli\u003e12V lead-acid: flooded, AGM, gel cell, sealed maintenance-free\u003c\/li\u003e\n\u003cli\u003eAll passenger car, truck, motorcycle, ATV, marine, and powersports batteries at 6V or 12V\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e1-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607742596,"sku":"026-0020","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/022-0020_battery_tester.png?v=1788869267"},{"product_id":"wavecharge-pro-2-bank-12v-20-amp-battery-charger-and-maintainer","title":"WaveCharge Pro 2-Bank 12V 20 Amp Battery Charger and Maintainer","description":"\u003cp\u003eThe WaveCharge Pro line exists for boats where 3 Amps per bank is not enough. The Battery Tender® WaveCharge Pro 2-Bank delivers 10 Amps per bank — more than three times the output of the WaveCharge line — with UL marine ignition protection, the highest waterproof rating in the WaveCharge family, and the same independent per-bank ISM (Infinite Sequential Monitoring™) architecture that makes WaveCharge the standard for marine multi-bank charging.\u003c\/p\u003e\u003ch3\u003e10 Amps Per Bank — For Larger Batteries and Faster Recovery\u003c\/h3\u003e\u003cp\u003eAt 10 Amps per bank, the WaveCharge Pro 2-Bank recovers large marine house batteries significantly faster. A depleted 150Ah house battery that takes over 50 hours to recover at 3 Amps recovers in approximately 15 hours at 10 Amps — with ISM managing the taper from bulk charge to absorption to float maintenance automatically. For boats with large AGM or Lithium house battery banks, or for commercial boats that need batteries ready on a schedule, Pro output is the practical threshold.\u003c\/p\u003e\u003ch3\u003eUL Marine Ignition Protection\u003c\/h3\u003e\u003cp\u003eCertified to not produce ignition-capable sparks during normal operation or connection in the presence of fuel vapors — the independent certification required for charging equipment installed in enclosed marine spaces near fuel systems. The WaveCharge Pro 2-Bank is certified for installation in engine rooms, fuel-adjacent compartments, and any enclosed marine space where ignition-protected equipment is required.\u003c\/p\u003e\u003ch3\u003eIndependent Banks at Full 10 Amps Output\u003c\/h3\u003e\u003cp\u003eEach bank operates as a complete independent 10 Amp charging circuit. Bank 1 can be in bulk charge recovering a depleted house battery at full 10 Amps while Bank 2 is in float maintenance on a fully charged starting battery — simultaneously, with no output reduction on either bank.\u003c\/p\u003e\u003ch3\u003eMulti-Chemistry: Lead-Acid and Lithium Per Bank\u003c\/h3\u003e\u003cp\u003eEach bank has its own chemistry selector for lead-acid or Lithium (LiFePO4) batteries, delivering the correct ISM charging profile at full 10 Amps output. Boats transitioning house banks from lead-acid to Lithium can configure each bank independently during the transition.\u003c\/p\u003e\u003ch3\u003eISM: 4-Stage Charging on Each Bank at 10 Amps\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Individual battery health check before current flows on each bank\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 10 Amps output per bank restores depleted capacity rapidly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers per bank as each battery approaches full charge, preventing overcharge damage for lead-acid and Lithium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Correct protocol for the selected chemistry on each bank, 24\/7, indefinitely\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCompatible per bank: 20Ah to 200Ah at 12V. Lead-acid: flooded, AGM, gel cell, sealed MF. Lithium: LiFePO4.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBoats with large starting and house battery banks requiring faster recovery\u003c\/li\u003e\n\u003cli\u003ePowerboats and sailboats with high-capacity AGM or Lithium house batteries\u003c\/li\u003e\n\u003cli\u003eCommercial and charter boats requiring rapid battery turnaround\u003c\/li\u003e\n\u003cli\u003eBoats requiring UL marine ignition protection in engine room installation\u003c\/li\u003e\n\u003cli\u003eAny two-bank 12V marine application where 3 Amps per bank is insufficient\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAutomatic Temperature Compensation\u003c\/h3\u003e\u003cp\u003eBoth banks adjust charge voltage automatically based on ambient temperature for lead-acid applications — ensuring complete charging in cold conditions and preventing overcharge in heat.\u003c\/p\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL marine ignition protection\u003c\/strong\u003e — certified for enclosed marine spaces and fuel vapor environments\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpark-proof connection on each bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eReverse polarity protection per bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection per bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIP67+ sealed housing\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e2-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607906436,"sku":"022-1007-DL-WH","price":254.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-wavecharge-pro-2-bank-12v-20-amp-battery-charger-022-1007-dl-wh-59391660622193.png?v=1788869266"},{"product_id":"jump-n-start-1500-amp-lithium-jump-starter","title":"Jump N Start 1500 Amp Lithium Jump Starter","description":"\u003cp\u003eMore peak cranking power. More battery capacity. More jump starts per charge. The Battery Tender® 1500 Amp Lithium Jump Starter is the portable car battery jump starter for drivers who want the extra headroom — 1500 peak Amps for larger engines, cold-weather starts, and hard-to-start vehicles, combined with a 12,000mAh power bank that charges devices multiple times and supports more jump start cycles before recharging. Handles any 12V gas engine up to V8 and diesel engines up to 7.0L.\u003c\/p\u003e\u003ch3\u003e1500 Peak Amps — Built for Bigger Engines and Harder Starts\u003c\/h3\u003e\u003cp\u003e1500 peak Amps delivers significantly more cranking power than 600 or 800 Amp units — the right specification for large displacement engines, diesel trucks, RVs, vehicles with high-compression engines, and any cold-weather start where battery output is reduced and extra cranking power is the margin between starting and staying stranded. Handles gas engines up to V8 and diesel engines up to 7.0L.\u003c\/p\u003e\u003ch3\u003eThe Best Portable Jump Starter for Cold Weather\u003c\/h3\u003e\u003cp\u003eCold temperatures reduce battery output dramatically — a battery that starts fine in summer may fail in below-freezing temperatures. Lithium jump starters maintain consistent peak Amp output in cold weather far better than lead-acid jump boxes, which lose significant capacity as temperatures drop. The 1500 Amp specification provides the buffer needed to start cold, marginally charged, or aging batteries that lower-output units cannot turn over.\u003c\/p\u003e\u003ch3\u003e12,000mAh Lithium Battery Pack\u003c\/h3\u003e\u003cp\u003eAt 12,000mAh — nearly double the capacity of the 600 Amp unit — the Battery Tender® 1500 Amp supports more jump start cycles on a single charge and provides substantial USB charging capacity for phones, tablets, and USB-C devices. A larger internal battery means less frequent recharging and more confidence that the jump starter is ready after extended storage.\u003c\/p\u003e\u003ch3\u003eHow to Jump Start a Car Battery\u003c\/h3\u003e\u003cp\u003eWith the Battery Tender® 1500 Amp, jump starting a dead car battery without jumper cables takes under two minutes:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eConnect the red clamp to the positive (+) terminal on the dead battery\u003c\/li\u003e\n\u003cli\u003eConnect the black clamp to a ground point or the negative (−) terminal\u003c\/li\u003e\n\u003cli\u003eSpark-proof connection technology confirms polarity before any current flows\u003c\/li\u003e\n\u003cli\u003eStart the vehicle — crank for up to 5 seconds per attempt with 30 seconds between attempts\u003c\/li\u003e\n\u003cli\u003eOnce running, disconnect clamps and store the jump starter\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eNo second vehicle. No waiting. No cable management. The 1500 Amp provides the cranking power to start most gas and diesel engines, even after extended discharge.\u003c\/p\u003e\u003ch3\u003ePortable Jump Starter That Fits Under the Seat\u003c\/h3\u003e\u003cp\u003eDespite 1500 peak Amps and a 12,000mAh battery, the Battery Tender® 1500 Amp remains compact enough for under-seat, trunk, or center console storage. Lithium technology delivers more power in less space than lead-acid alternatives — keeping the jump starter in the vehicle full-time without meaningful storage sacrifice.\u003c\/p\u003e\u003ch3\u003eUSB Power Bank — Useful Every Day\u003c\/h3\u003e\u003cp\u003eThe 12,000mAh battery charges phones, tablets, and electronics between jump start events — making the 1500 Amp a daily-use portable power bank that stays charged because it's used regularly, not a device that sits discharged when the emergency finally arrives.\u003c\/p\u003e\u003ch3\u003eCompatible Vehicles\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFull-size trucks, SUVs, and pickup trucks\u003c\/li\u003e\n\u003cli\u003ePassenger cars and sedans\u003c\/li\u003e\n\u003cli\u003eMotorcycles and touring bikes\u003c\/li\u003e\n\u003cli\u003eBoats and marine vessels\u003c\/li\u003e\n\u003cli\u003eRVs and campers\u003c\/li\u003e\n\u003cli\u003eATVs, UTVs, and off-road vehicles\u003c\/li\u003e\n\u003cli\u003eAny 12V gas engine up to V8 or diesel engine up to 7.0L\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof clamp technology\u003c\/strong\u003e — no current flows until connection is confirmed correct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection\u003c\/strong\u003e — alerts and prevents current flow if clamps are reversed\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOvercurrent protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOver-temperature protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e1-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607939204,"sku":"030-2020-WH","price":152.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-1500-amp-jump-starter-12000mah-power-bank-030-2020-wh-30744381358178.jpg?v=1788869267"},{"product_id":"battery-tender®-quick-disconnect-usb-and-usb-c-voltage-indicator","title":"Battery Tender® Quick Disconnect USB and USB-C Voltage Indicator","description":"\u003cp\u003eThe Battery Tender® Quick Disconnect USB and USB-C Voltage Indicator combines two functions in one SAE quick disconnect accessory — a real-time LCD battery voltage display and simultaneous USB and USB-C device charging at up to 3 Amps from the vehicle's 12V battery. Monitor battery state while charging devices, from the same SAE connection point.\u003c\/p\u003e\u003ch3\u003eLCD Voltage Display — Real-Time Battery Monitoring\u003c\/h3\u003e\u003cp\u003eThe LCD display shows battery voltage in real time — not just a color indicator, but an actual voltage reading. Track battery state precisely during charging sessions, monitor voltage drop under load, and verify that a Battery Tender® charger is maintaining the correct float voltage. More information than LED indicators alone.\u003c\/p\u003e\u003ch3\u003eUSB and USB-C Charging — Up to 3 Amps\u003c\/h3\u003e\u003cp\u003eA USB-A port and a USB-C port provide up to 3 Amps total charging output for phones, tablets, GPS units, and accessories — powered directly from the vehicle's 12V battery through the SAE quick disconnect connection. Charge devices from any vehicle with a Battery Tender® ring terminal harness installed without using the vehicle's ignition-switched outlets.\u003c\/p\u003e\u003ch3\u003eSAE Quick Disconnect — Compatible with the Full Battery Tender® System\u003c\/h3\u003e\u003cp\u003eUses the SAE J563 two-pin connector standard, compatible with all Battery Tender® chargers and accessories. Connect to any existing ring terminal harness or SAE quick disconnect system — the voltage indicator sits inline with the connection, monitoring battery state while the USB and USB-C ports charge devices simultaneously.\u003c\/p\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cp\u003eAll Battery Tender® SAE quick disconnect chargers and accessories — Junior family, Plus family, Weather Resistant, Junior Multi-Chemistry, WaveCharge Standard line, and any SAE J563-compatible equipment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783607971972,"sku":"081-0159","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-lcd-voltage-indicator-quick-disconnect-usb-and-usb-c-charger-adapter-081-0159-31068849602658.png?v=1788869266"},{"product_id":"power-tender®-15-8-2-amp-12v-battery-charger-and-maintainer","title":"Power Tender® 15\/8\/2 Amp 12V Battery Charger and Maintainer","description":"\u003cp\u003eThe most advanced charger in the Battery Tender® lineup. The Power Tender® 15\/8\/2 Amp LCD is the only Battery Tender® charger with a built-in LCD display and the only one with a dedicated Winter Mode — delivering three selectable output levels, Multi-Chemistry support for lead-acid and Lithium batteries, real-time charging feedback, and cold-weather optimization in a 5-Year warranty package that reflects the premium engineering behind it.\u003c\/p\u003e\n\u003ch3\u003eThree Output Levels — One Charger\u003c\/h3\u003e\n\u003cp\u003eA manual mode selector delivers three distinct output levels matched to different charging needs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e15 Amp\u003c\/strong\u003e — High-speed bulk charging for large, heavily depleted batteries. A 100Ah battery depleted to 50% recovers in approximately 4 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 Amp\u003c\/strong\u003e — Mid-range charging for standard automotive and marine batteries. Balances speed with reduced heat generation for AGM and Lithium batteries that are sensitive to high-current charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 Amp\u003c\/strong\u003e — Precision maintenance charging for smaller batteries and long-term float maintenance. Suitable for powersports, motorcycles, and any application where slower, gentler charging is preferred.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eISM (Infinite Sequential Monitoring™) runs its full 4-stage algorithm at the selected output and selected chemistry — from bulk charge through absorption to float maintenance — automatically.\u003c\/p\u003e\n\u003ch3\u003eMulti-Chemistry: Lead-Acid and Lithium\u003c\/h3\u003e\n\u003cp\u003eA manual chemistry selector switches between lead-acid and Lithium (LiFePO4) charging profiles at any of the three output levels. Lithium batteries require distinct absorption voltages and a different maintenance protocol than lead-acid — the Power Tender® 15\/8\/2 Amp LCD delivers the correct ISM profile for each chemistry at 15 Amp, 8 Amp, or 2 Amp output. High-capacity Lithium battery systems in trucks, marine vessels, and RVs are fully supported alongside conventional lead-acid configurations.\u003c\/p\u003e\n\u003ch3\u003eLCD Display: Real-Time Charging Feedback\u003c\/h3\u003e\n\u003cp\u003eThe built-in LCD display shows battery voltage, current charge stage, and charging status in real time — information that all other Battery Tender® chargers communicate only through LED indicators. For technicians, fleet managers, and detail-oriented owners who want to monitor charging progress directly, the LCD provides the visibility that LED-only chargers cannot.\u003c\/p\u003e\n\u003ch3\u003eWinter Mode: Cold Weather Charging Optimization\u003c\/h3\u003e\n\u003cp\u003eWinter Mode applies a higher charging voltage specifically calibrated for batteries in extreme cold. Below-freezing temperatures significantly reduce electrolyte conductivity in lead-acid batteries and require higher voltage to achieve full charge. Standard chargers attempt to deliver normal voltage and leave cold batteries chronically undercharged. Activating Winter Mode adjusts the entire ISM charging profile for cold conditions, ensuring fully charged batteries even in unheated garages, outdoor storage, and northern climates.\u003c\/p\u003e\n\u003ch3\u003eISM: 4-Stage Charging at 15, 8, or 2 Amp\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Battery health check before current flows at the selected output level and chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full output at selected Amp level restores depleted capacity at the correct voltage for the selected chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers automatically at any output level as the battery approaches full charge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Correct maintenance protocol for lead-acid or Lithium delivered 24\/7, indefinitely\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatible battery size range: 14Ah to 250Ah at 12V. Lead-acid: flooded, AGM, gel cell, and sealed maintenance-free. Lithium: LiFePO4.\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFull-size trucks, SUVs, and large passenger vehicles with lead-acid or Lithium batteries\u003c\/li\u003e\n\u003cli\u003eMarine vessels with large house or starting batteries\u003c\/li\u003e\n\u003cli\u003eRVs and campers with high-capacity lead-acid or Lithium battery banks\u003c\/li\u003e\n\u003cli\u003eAgricultural and commercial equipment with large batteries\u003c\/li\u003e\n\u003cli\u003eCollector and classic vehicle garages requiring visible charging feedback\u003c\/li\u003e\n\u003cli\u003eNorthern climate storage with cold-weather charging requirements\u003c\/li\u003e\n\u003cli\u003eAny application requiring LCD visibility, Winter Mode, or Lithium compatibility at high output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAutomatic Temperature Compensation\u003c\/h3\u003e\n\u003cp\u003eIn addition to manual Winter Mode, charge voltage adjusts automatically based on ambient temperature throughout all charging stages — a second layer of temperature management on top of the manual winter optimization.\u003c\/p\u003e\n\u003ch3\u003eSafety Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof connection\u003c\/strong\u003e — No current flows until polarity and connection are confirmed correct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection\u003c\/strong\u003e — Automatic shutdown if connections are reversed, protecting Lithium BMS systems and vehicle electronics\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eETL and CETL certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSulfation in lead-acid batteries is prevented entirely through continuous ISM float maintenance at any output level. Battery life consistently extends from 2–3 years to 5 years or more.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783608037508,"sku":"022-0234-DL-WH","price":149.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-15-amp-12-volt-power-tender-automotive-battery-charger-and-maintainer-022-0234-dl-wh-59635482493297.png?v=1788869267"},{"product_id":"wavecharge-pro-3-bank-12v-30-amp-battery-charger-and-maintainer","title":"WaveCharge Pro 3-Bank 12V 30 Amp Battery Charger and Maintainer","description":"\u003cp\u003eThree banks. 10 Amps each. 30 Amps total. The Battery Tender® WaveCharge Pro 3-Bank delivers high-output independent charging to three separate marine battery banks simultaneously — with UL marine ignition protection for engine room installation, full Multi-Chemistry support for lead-acid and Lithium, and ISM (Infinite Sequential Monitoring™) managing each bank's full 4-stage charge cycle independently.\u003c\/p\u003e\u003ch3\u003e10 Amps Per Bank on Three Independent Circuits\u003c\/h3\u003e\u003cp\u003eEach of the three banks operates as a complete independent 10 Amp charging circuit. No output is shared between banks. A bank recovering a depleted trolling motor battery at full 10 Amps bulk charge does not reduce the output available to the two banks in float maintenance on fully charged starting and house batteries. Three batteries charged simultaneously at full output, each at its own charge stage.\u003c\/p\u003e\u003ch3\u003eUL Marine Ignition Protection\u003c\/h3\u003e\u003cp\u003eCertified to not produce ignition-capable sparks during normal operation or connection in the presence of fuel vapors. The WaveCharge Pro 3-Bank meets the independent certification requirement for charging devices installed in enclosed marine spaces near fuel systems — engine rooms, fuel-adjacent bilge compartments, and any location where ignition-protected equipment is mandatory.\u003c\/p\u003e\u003ch3\u003eMulti-Chemistry: Lead-Acid and Lithium Per Bank\u003c\/h3\u003e\u003cp\u003eEach bank has its own chemistry selector. A boat running a lead-acid starting battery, a Lithium house bank, and a lead-acid trolling motor battery configures each bank independently — the correct ISM absorption voltage and float protocol for each chemistry at full 10 Amps output.\u003c\/p\u003e\u003ch3\u003eISM: 4-Stage Charging on All Three Banks at 10 Amps\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Individual health check on each bank before current flows\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 10 Amps output per bank restores depleted capacity rapidly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers per bank independently as each battery approaches full charge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Correct protocol for lead-acid or Lithium on each bank, 24\/7, indefinitely\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCompatible per bank: 20Ah to 200Ah at 12V. Lead-acid: flooded, AGM, gel cell, sealed MF. Lithium: LiFePO4.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCruising and offshore boats with three-bank systems requiring fast recovery\u003c\/li\u003e\n\u003cli\u003eBoats with separate high-capacity starting, house, and auxiliary battery banks\u003c\/li\u003e\n\u003cli\u003eCommercial and charter boats requiring rapid overnight battery recovery\u003c\/li\u003e\n\u003cli\u003eLiveaboard boats with large Lithium house banks alongside lead-acid service batteries\u003c\/li\u003e\n\u003cli\u003eAny three-bank marine application requiring UL marine ignition protection and high output\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAutomatic Temperature Compensation\u003c\/h3\u003e\u003cp\u003eAll three banks adjust charge voltage automatically based on ambient temperature for lead-acid applications — correct charging across all three banks in any marina or offshore environment.\u003c\/p\u003e\u003ch3\u003eSafety Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL marine ignition protection\u003c\/strong\u003e — certified for enclosed marine and fuel vapor environments\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpark-proof connection on each bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eReverse polarity protection per bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection per bank\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIP67+ sealed housing\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003e2-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783608004740,"sku":"022-1008-DL-WH","price":409.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/022-1008-DL-WH.BatteryTender.01.png?v=1788869267"},{"product_id":"power-tender®-4-amp-12v-6v-battery-charger-and-maintainer","title":"Power Tender® 4 Amp 12V\/6V Battery Charger and Maintainer","description":"\u003cp\u003eFour amps. Two voltages. Full Multi-Chemistry support. The Power Tender® 4 Amp 12V\/6V delivers efficient, high-output charging for lead-acid and Lithium batteries at either 6V or 12V — with ISM (Infinite Sequential Monitoring™) ensuring precision at every stage from initial recovery through indefinite float maintenance for both chemistries.\u003c\/p\u003e\n\u003ch3\u003eThe 4 Amp Advantage\u003c\/h3\u003e\n\u003cp\u003eAt 4 Amp output, the Power Tender® charges automotive batteries more than three times faster than a 1.25 Amp maintainer during the bulk phase. A fully depleted 60Ah car battery that takes over 48 hours to recover at 1.25 Amp recovers in under 15 hours at 4 Amp — with ISM managing the taper and transition to float automatically. For vehicles that need to be back in service quickly, or batteries too large to recover efficiently at lower outputs, 4 Amp is the practical charging threshold for most passenger vehicles.\u003c\/p\u003e\n\u003ch3\u003eMulti-Chemistry: Lead-Acid and Lithium\u003c\/h3\u003e\n\u003cp\u003eA manual chemistry selector delivers the correct ISM charging profile for either lead-acid or Lithium (LiFePO4) batteries. Lithium batteries require higher absorption voltages and a different float protocol than lead-acid — applying the wrong profile damages the battery over time. The Power Tender® 4 Amp eliminates this risk: select the chemistry once, and ISM delivers the correct voltages, tapering, and maintenance protocol for that battery type at either voltage setting.\u003c\/p\u003e\n\u003ch3\u003eISM: 4-Stage Charging at 4 Amp\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Battery health check and polarity confirmation before current flows at the selected voltage and chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 4 Amp output restores depleted capacity efficiently at the correct voltage for the selected chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers automatically as the battery approaches full charge, eliminating overcharge heat damage for both lead-acid and Lithium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Delivers the correct maintenance protocol for the selected chemistry indefinitely, 24\/7, without overcharging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatible battery size range: 14Ah to 100Ah at 6V or 12V. Lead-acid: flooded, AGM, gel cell, and sealed maintenance-free. Lithium: LiFePO4.\u003c\/p\u003e\n\u003ch3\u003e6V Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClassic and antique automobiles with 6V systems\u003c\/li\u003e\n\u003cli\u003eVintage motorcycles and pre-1960s vehicles\u003c\/li\u003e\n\u003cli\u003eAntique tractors, farm equipment, and machinery\u003c\/li\u003e\n\u003cli\u003eAny 6V lead-acid or Lithium battery from 14Ah to 100Ah\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e12V Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCars, sedans, and compact SUVs\u003c\/li\u003e\n\u003cli\u003ePickup trucks and full-size SUVs\u003c\/li\u003e\n\u003cli\u003eMotorcycles and touring bikes\u003c\/li\u003e\n\u003cli\u003eATVs, UTVs, and side-by-sides\u003c\/li\u003e\n\u003cli\u003eBoats and marine vessels\u003c\/li\u003e\n\u003cli\u003eLawnmowers and garden tractors\u003c\/li\u003e\n\u003cli\u003eRVs and campers\u003c\/li\u003e\n\u003cli\u003eAny 12V lead-acid or Lithium battery from 14Ah to 100Ah\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDual Voltage — One Charger for the Entire Garage\u003c\/h3\u003e\n\u003cp\u003eThe manual 6V\/12V selector delivers full 4 Amp output at either voltage. For garages that maintain both vintage 6V vehicles and modern 12V vehicles — with either lead-acid or Lithium batteries — one Power Tender® 4 Amp replaces multiple separate chargers with one intelligent unit.\u003c\/p\u003e\n\u003ch3\u003eAutomatic Temperature Compensation\u003c\/h3\u003e\n\u003cp\u003eCharge voltage adjusts automatically based on ambient temperature at both voltage settings — delivering the correct charge profile in cold winter storage and hot summer conditions without manual adjustment.\u003c\/p\u003e\n\u003ch3\u003eSafety Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof connection\u003c\/strong\u003e — No current flows until polarity and connection are confirmed correct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection\u003c\/strong\u003e — Automatic shutdown if connections are reversed, protecting Lithium BMS systems and ECUs\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eShort-circuit protection\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eETL and CETL certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAfter Charging: Indefinite Float Maintenance\u003c\/h3\u003e\n\u003cp\u003eAfter the Power Tender® 4 Amp completes bulk and absorption charging, ISM transitions to the correct float maintenance protocol for the selected chemistry automatically. Batteries do not need to be disconnected. Sulfation in lead-acid batteries is prevented entirely through continuous float maintenance. Battery life consistently extends from 2–3 years to 5 years or more.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783608070276,"sku":"022-0209-BT-WH","price":104.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/battery-tender-default-title-4-amp-power-tender-12v-6v-switchable-battery-charger-022-0209-bt-wh-59396462477681.png?v=1788869266"},{"product_id":"battery-tender®-ring-terminal-and-usb-adapter-combo","title":"Battery Tender® Ring Terminal and USB Adapter Combo","description":"\u003cp\u003eThe Battery Tender® Ring Terminal Cable and USB Adapter Combo is the complete SAE quick disconnect accessory pack — a permanent battery connection harness and a USB charging adapter in one bundle. Everything needed to maintain the battery through an SAE charger and charge USB devices from the same connection point, together in a single purchase.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRing Terminal Cable with SAE Quick Disconnect\u003c\/strong\u003e — Mounts permanently to the battery terminals, providing a fast-connect point for any Battery Tender® charger without direct terminal access on each charging session\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Adapter with SAE Quick Disconnect\u003c\/strong\u003e — Connects to the SAE quick disconnect to provide USB device charging from the vehicle's 12V battery\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eRing Terminal Harness — Permanent Battery Connection\u003c\/h3\u003e\u003cp\u003eThe ring terminal cable mounts to the battery positive and negative terminals and stays connected. The SAE quick disconnect on the other end provides the interface for Battery Tender® chargers and accessories. Connect the charger in seconds without touching the battery terminals — ideal for vehicles where battery access is inconvenient or frequent direct terminal connection causes corrosion.\u003c\/p\u003e\u003ch3\u003eUSB Adapter — Charge Devices from the Battery\u003c\/h3\u003e\u003cp\u003eThe included USB adapter connects to the SAE quick disconnect system to provide USB charging from the vehicle's 12V battery — for phones, GPS units, and other USB-powered accessories when the vehicle's ignition-switched outlets are not available.\u003c\/p\u003e\u003ch3\u003eCompatible Chargers and Accessories\u003c\/h3\u003e\u003cp\u003eAll Battery Tender® SAE quick disconnect chargers and accessories — Junior family, Plus family, Junior Multi-Chemistry, Weather Resistant, WaveCharge Standard line, and any SAE J563-compatible equipment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-Year Limited Warranty | DeLand, Florida Since 1965\u003c\/strong\u003e\u003c\/p\u003e","brand":"Battery Tender®","offers":[{"title":"Default Title","offer_id":52783608103044,"sku":"081-0174","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/6813\/7860\/files\/Bundle_First_Images-4.png?v=1788869266"},{"product_id":"powerplus-48v-15-amp-battery-charger-and-maintainer","title":"PowerPlus 48V 15 Amp Battery Charger and Maintainer","description":"\u003cp\u003eThe Battery Tender® PowerPlus™ 48V 15 Amp is engineered for both portable use and permanent on-board installation — delivering intelligent charging to 48V battery systems in golf carts, industrial electric vehicles, marine electric propulsion systems, and solar storage applications. IP68 waterproofing, UL marine ignition protection, Multi-Chemistry support for lead-acid and Lithium, and Battery Tender®'s ISM (Infinite Sequential Monitoring™) in a charger built for demanding environments.\u003c\/p\u003e\u003ch3\u003e48V — The Growing Standard for Electric Vehicle and Storage Applications\u003c\/h3\u003e\u003cp\u003e48V battery systems deliver more power at lower current than equivalent 12V or 24V systems — reducing cable weight, heat generation, and efficiency losses across the system. Modern golf carts, industrial forklifts, electric personnel carriers, and marine electric propulsion systems increasingly use 48V as the standard configuration. The PowerPlus™ 48V 15 Amp delivers 15 Amp charging at this voltage, with ISM managing the full charge cycle automatically from initial recovery through indefinite float maintenance.\u003c\/p\u003e\u003ch3\u003eIP68 — Installation in Any Environment\u003c\/h3\u003e\u003cp\u003eIP68 certification provides complete dust protection and water immersion resistance exceeding IP67 standards. The PowerPlus™ 48V 15 Amp can be permanently mounted in exposed equipment bays, bilge-adjacent compartments, and wet storage environments where standard chargers cannot be installed. Golf carts stored outdoors, marine vessels with electric propulsion, and industrial equipment operating in wash-down environments are all supported.\u003c\/p\u003e\u003ch3\u003eUL Marine Ignition Protection\u003c\/h3\u003e\u003cp\u003eCertified to not produce ignition-capable sparks during operation or connection in the presence of fuel vapors — the independent certification required for charging equipment installed in enclosed marine spaces. The PowerPlus™ 48V 15 Amp is suitable for marine electric propulsion and house battery applications in vessels where ignition-protected equipment is mandatory.\u003c\/p\u003e\u003ch3\u003eMulti-Chemistry: Lead-Acid and Lithium at 48V\u003c\/h3\u003e\u003cp\u003eA chemistry selector delivers the correct ISM charging profile for either lead-acid or Lithium (LiFePO4) batteries at 48V. The transition to Lithium in 48V applications — golf carts, industrial EVs, and solar storage — is well underway. The PowerPlus™ 48V 15 Amp supports both chemistries at full 15 Amp output, making it a compatible installation for current lead-acid systems and future Lithium upgrades without changing the charger.\u003c\/p\u003e\u003ch3\u003eISM: 4-Stage Charging at 15 Amp\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Battery health check before current flows at the selected chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 15 Amp output restores depleted capacity at 48V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers automatically as the battery approaches full charge, preventing overcharge for lead-acid and Lithium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Correct maintenance protocol for the selected chemistry delivered 24\/7, indefinitely\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCompatible battery size range: 40Ah to 200Ah at 48V. 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Triple the output of the Battery Tender® Plus at either 6V or 12V, with Multi-Chemistry support for both lead-acid and Lithium batteries, and the same ISM (Infinite Sequential Monitoring™) intelligence that has protected batteries since 1965.\u003c\/p\u003e\n\u003ch3\u003eBuilt for Faster Recovery on Larger Batteries\u003c\/h3\u003e\n\u003cp\u003eThe Power Tender® 3 Amp delivers full 3 Amp output at either 6V or 12V — three times the output of the standard Plus at the same voltage. For automotive batteries from 14Ah to 100Ah that have sat discharged for extended periods, 3 Amp bulk charging recovers capacity significantly faster without the risk of overcharge that comes with unregulated high-output chargers.\u003c\/p\u003e\n\u003ch3\u003eMulti-Chemistry: Lead-Acid and Lithium\u003c\/h3\u003e\n\u003cp\u003eA manual chemistry selector switches between lead-acid and Lithium (LiFePO4) charging profiles, delivering the correct absorption voltage and float protocol for each battery type. Select lead-acid for flooded, AGM, GEL, and sealed batteries; select Lithium for LiFePO4 batteries in modern vehicles and upgraded powersports applications. ISM adapts its full 4-stage algorithm to the selected chemistry automatically.\u003c\/p\u003e\n\u003ch3\u003eISM: 4-Stage Charging at Full 3 Amp Output\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialization\u003c\/strong\u003e — Battery health check and polarity confirmation before current flows; adapts to the selected voltage and chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Charge\u003c\/strong\u003e — Full 3 Amp output at 6V or 12V restores depleted capacity efficiently\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorption\u003c\/strong\u003e — Current tapers automatically as the battery approaches full charge, preventing overcharge damage at the correct voltage for the selected chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat Maintenance\u003c\/strong\u003e — Precisely regulated micro-current delivers the correct maintenance protocol for lead-acid or Lithium indefinitely, 24\/7, without overcharging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatible battery size range: 14Ah to 100Ah at 6V or 12V. 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The Power Tender® 3 Amp is the correct choice when batteries need actual recovery — vehicles that sat all winter without any maintenance charger, larger automotive batteries that take days to recover at 1.25 Amp, or any application where charging speed and Lithium compatibility matter alongside long-term maintenance capability.\u003c\/p\u003e\n\u003ch3\u003eAutomatic Temperature Compensation\u003c\/h3\u003e\n\u003cp\u003eCharge voltage adjusts automatically based on ambient temperature at both voltage settings — increasing in cold conditions to ensure a complete charge, reducing in heat to prevent overcharging and gassing. Correct voltage delivered year-round without manual adjustment.\u003c\/p\u003e\n\u003ch3\u003eSafety Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpark-proof connection\u003c\/strong\u003e — No current flows until polarity and connection are confirmed correct\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection\u003c\/strong\u003e — Automatic shutdown if connections are reversed, protecting Lithium BMS systems and vehicle electronics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort-circuit protection\u003c\/strong\u003e — Automatic fault detection and shutdown\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eETL and CETL certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSulfation Prevention at 3 Amp\u003c\/h3\u003e\n\u003cp\u003eSulfation — the permanent, irreversible hardening of lead sulfate on battery plates — occurs when lead-acid batteries sit discharged. 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