Schumacher XC6 SpeedCharge 6 Amp Battery Charger 6 ampere engine start for emergency starting Self-adjusting, variable charge rates for everyday charging needs and maintaining your battery in peak condition Charges and automatically desulfates and restores car, truck, RV, farm equipment, AGM, gel cell and deep-cycle batteries 6 ampere fast charge and 2 ampere slow charge The charger automatically determines whether the connected battery is a 6 volt battery or a 12 volt battery