The Schumacher SC1355 Battery Maintainer is a great option for power sport, car, and marine batteries. The microprocessor automatically adjusts the amp rate. With multi-stage charging and float mode monitoring. Optimum charging and maintaining to extend battery life. Includes a quick-connect harness, LED light indicators and simple button controls for easy use. Reverse hook-up protection to prevent charger from operating if the clamps are reversed. Schu Eco Energy meets the highest industry standards. Compatible with standard and AGM batteries.