Schumacher's sc1341 2/20/80a 12v doe battery charger features an 80a engine starter powerful enough for starting cars, SUVs, and small trucks. This fully automatic charger is microprocessor controlled so it automatically adjusts the amperage rate to charge and maintain. Features multi-stage charging for added precision, safety, and battery life. Includes led indicators and button controls for ease and accuracy. Charges compatible battery types: standard, AGM, gel, deep-cycle batteries. Reverse hook-up protection ensures charger will not operate if clamps are reversed. Monitors and maintains the battery when fully charged and resumes continuous charging when battery becomes discharged, so you can maintain it all season long. Designed to meet the highest industry standards for energy efficiency.