The 6015B ATEC 6/12 Volt Manual Battery Charger has power usually found on much higher priced Automotive wheeled battery chargers. Solid state circuitry ensures full charge for 6 & 12 volt conventional flooded batteries. Digital display shows both voltage and amperage. Powerful 200 amp engine start with 300 amp peak helps start stubborn trucks and cars. Charges 6 & 12 volt maintenance free batteries used in cars, trucks, farm equipment, RV and commercial applications. Charges discharged automotive batteries in 2 hours. 10 amp setting is ideal for charging smaller 12 volt batteries. 40 amp setting for fast charging. Large clamps deliver solid connections.