6 - 2A charge/maintain, 10A boost, 55A engine start for engine starting, charging & rugged use. Product Features:Charges standard, AGM and Gel batteries55A Engine starter - Powerful enough for starting cars, SUVs and small trucksLED indicators and button controls - for ease and accuracySTART/STOP push button interfaceHeavy-duty metal caseMicroprocessor controlled - automatically adjusts the amperage rate to charge and maintainMulti-stage charging for added precision, safety and battery lifeReverse hook-up protection - charger will not operate if clamps are reversed; LED will flashSchu Eco Energy -meets the highest industry standardsDOE compliantContents: (1) Schumacher SC1340 charger (1) Manual