• High Capacity: With 2000A peak current and 20000mAh capacity, this jump starter can power most 12V vehicles, including gas and 8.5L diesel engines. • With 2000A peakcurrent and 20000mAh capacity, the car jumper is powertul enough to start most 12V vehicles (any gas or 8.5L dieselfuel) or motorcycles, RV, tractor, lawnmower, speedboat, etc.