Smart mechanics trust the Schumacher Electric line of battery chargers and maintainers to get the job done and keep all their batteries in fully charged and in top condition. The Schumacher SC1308 100A 6V/12V Fully Automatic Battery Charger and Engine Starter is perfect for advanced diagnostic testing, engine starting, and battery charging. This unit offers 100A engine start, 30A boost, and 6A/2A charge/maintain rates. Plus, the unit works as a battery and alternator tester, providing charge level and helping to diagnose electrical problems. Fully automatic and microprocessor controlled, the SC1308 features multi-stage charging, float mode monitoring, and auto voltage detection. It is compatible with standard and AGM batteries. Product Features:100A engine start, 30A boost, 6A charge, and 2A maintain Powerful enough for starting SUVs, trucks, and large batteriesBattery and alternator tester provides charge level and helps diagnose electrical problemsDigital display, LED indicators and button controls for ease and accuracyWrap cleats provide convenient cord storageMicroprocessor controlled and automatically adjusts the amperage rate to charge and maintainMulti-stage charging for added precision, safety, and battery lifeFloat mode monitoring automatically maintains optimum battery chargeAuto voltage detection of 6V or 12V batteriesReverse hook-up protection prevents the charger from operating if clamps are reversed; LED will flash