3X faster charging Recovers dead batteries Compatible with Lithium LiFePO4 batteries Microprocessor Controlled- automatically adjusts the amperage rate to charge & maintain Multi-stage charging for added precision, safety & battery life Battery and Alternator Tester- provides charge level and helps diagnose electrical problems LED display, indicators and push button controls- for ease and accuracy Auto Voltage Detection- automatically detects 6 or 12 volt batteries Reverse Hook-Up Protection- charger will not operate if clamps are reversed Start/Stop Interface DOE compliant