Powered by twin high-performance ES Series batteries, the ES6000 delivers 3000 Peak Amps for heavy-duty starting in even the most difficult situations. Its 54 inch cables and heavy-duty clamps allow ideal placement during jump starting while its automatic charging feature enables you to keep the unit in an always-ready state. Portable jump starters for tractor trucks all the way to agricultural equipment. Portable jump starters for all sorts of vehicles.