No home garage is complete without an automotive battery charger and maintainer. Imbued with the quality CRAFTSMAN® is known for, the CMXCESM162 15A 6V/12V Automotive Battery Charger and Maintainer is the smart choice. The CMXCESM162 can handle all your automotive charging needs with a 3A charge for 6V batteries, a 15A charge for 12V batteries, and a 2A maintain mode. The charger is designed for fully automatic operation with auto voltage detection, multi-stage charging, and reverse hook-up protection. The CMXCESM162 also automatically selects the correct charge rate during charging and maintaining. It will even detect a bad battery. Another advantage of the CMXCESM162 is its wide compatibility. It is designed to work with 6V and 12V standard, AGM, deep-cycle, and lithium (LiFePO4) batteries. Other features include a digital display showing voltage and percentage of charge, LED indicators, a push-button interface, and 6-foot booster cables.