Measuring 9 in. tall and weighing less than 4 lb, mPower Truck Jump delivers 1,000 A for 12 V batteries and 500 A for 24 V batteries. Unit automatically detects battery voltage system and provides multiple electronic safety protections, including reverse polarity, reverse charge, short circuit, overload, and starting override. In addition to large trucks and commercial operations, jumpstarter/multi-purpose charger is suited for buses, cars, vans, SUVs, and boats.