For maintaining all power sport, car and boat batteries 2 A output per bank – 4 A total output. Charging status LED indicators. Microprocessor controlled – automatically adjusts amperage rate to charge and maintain. Multi-stage charging – for added precision, safety and battery life. Float mode monitoring – maintains optimum battery charge. Auto voltage detection and reverse hook-up protection. Hook attachment – allows you to hang the charger outside the work area for safety and convenience. Mounting holes for wall placement. Energy-efficient – meets the highest industry standards.