Power Queen 12V 20A LiFePO4 Battery Charger 14.6VThis Power Queen 14.6V 20A LiFePO4 battery charger is designed for 12V (12.8V) LiFePO4 batteries with a two-stage constant current/constant voltage charging algorithm. The 20A constant current and 14.6V constant voltage can fully charge a 12V 100Ah LiFePO4 battery in approximately 5 hours, compared to 33 hours with a 3-amp charger. Multiple protection features include over-temperature, output short-circuit, reverse polarity, and output over-voltage protection to extend battery life. Supports 0V charging function to reactivate dead batteries. Constructed from aluminum alloy with surface oxidation and a built-in cooling fan.MPN14.6V20AItemweight4.03 poundsProductdimensions7.1 x 2.2 x 10.2 inchesPartnumber14.6V20A