Wheeled charger for 12V batteries provide roll-around convenience and features high-output engine start. 200A automatic wheel charger. Output current 2A/40A cont, 6A int. Microprocessor-controlled charger boosts, charges and maintains batteries. 200 Amp engine start. Features tough steel case, retractable handle, compact wheels for easy storage, LED indicators and button, 6 Ft. power cord, color-coded clamps, temperature overload and reverse hook-up protection. Great for do-it-yourselfers, mechanics and fleet operations.