Battery Tender 5 Amp Power Tender 12V Battery Charger The Battery Tender 5 AMP Power Tender charger offers a seamless charging experience with its fully automatic system tailored for both lithium and lead-acid batteries. Engineered for high versatility, it supports a range of vehicles from cars to RVs, ensuring optimal maintenance with its four-step charging process. It smartly transitions to float mode upon full charge to prevent overcharging, bolstered by a 72-hour safety timer to shield weaker batteries. Its comprehensive design caters to both flooded and sealed batteries, including AGM and Gel Cell, epitomizing reliability for all your rechargeable needs. Features: Input: 120Vac / 60Hz Output: 12V / 5 Amp 4-Step Fully Automatic Charging (Initialization, Bulk, Absorption, Float) Automatically switches to float / maintenance voltage after fully charging the battery Spark Proof Short Circuit Protected Reverse Polarity Protected Safety timer: 72 hours 2-Year Warranty Listed in California Appliance Efficiency Database Agency Approvals: Ul/Csa/Bc