Equip your semi to be Ready for the Road Ahead , with the Solar 12/24 Volt Jump-N-Carry Jump Starter, a key device to jump dead or uncharged batteries. This specialized tool works to transfer power from an internal battery to the battery of a vehicle, providing the necessary voltage to crank an engine. Engineered with industrial-grade hot jaw clamps to efficiently transfer power without heat-related issues. FleetPride is your First Click in Heavy Duty .