Heavy-duty, powerful and durable for both slow and fast charge applications by DIYers, professional mechanics and fleet operations. All-steel cases coated with baked enamel finish. Equipped with transformer cooling fan and deeply louvered ventilation for high-performance and long life. Clear view, impact-resistant, color-coded meter. Easy roll, wide tracked wheels. High output engine start will assist batteries in cranking most engines under severe summer/winter weather conditions. Thermal breaker protects against overloads and reverse hookups. Heavy-duty 6 or 8 ga wire, 6 ft multi strand cables flexible to -40 deg F. Solid state circuitry. On/Off switch. 200 A engine start for emergency starting. 35 A rapid charge in 1 to 3 hrs. 2 A trickle charge for charging small 12 V batteries in 2 to 12 hrs. Will charge 12 V batteries of cars, trucks, tractors, motorcycles, riding lawn mowers, snow mobiles, 18 wheelers, wreckers and box trucks/industrial conversion vans.