ATEC 6/12V Smart Charger with 100 Amp Start Features Automatic 6 &12 Volt settings turn off at full charge and turn back on if battery needs more power LED Digital Display indicates charging voltage, amperage, charge time and countdown for start function Continuous rating 12V 15/2 Amps 100A Engine Start 12V Automatic bad battery detection Automatic 6V position for lower voltage "requirements Designed for Standard, AGM, GEL batteries Four-Color Retail Packaging Imported