Description 12/24 VOLT 25A BATTERY CHARGER Stark portable automotive battery charger has three modes, making it easy to charge, maintain or jump start 12/24 volt batteries. This automotive battery charger has built-in safety features such as reverse polarity alert, thermal protection shutoff and a self-resetting circuit breaker. Copper plated clamps offer superior conductivity. Specifications: Color: Black Housing Material: Steel AC power input: 12V/230W, 24V/360W Charge Voltage: 12-24V Rated Voltage: 12V/12A, 24V/10A Max charge current: 25A Battery Capacities: 20-250Ah Certification: CE Listed Overall Dimension: 9-3/4″(W) x 9″(L) x 8-1/4″(H)