Transform the household AC power to DC power for golf cart battery Fully automatic battery charging(completes the charge cycle and goes to "float" charge) Designed not to overcharge or undercharge your golf cart battery Floating charge helps extend your battery life and help out for better performance With short circuit,over voltage,over temperature,reverse backup,over heat protection(when inside temperature over 75 degree Celsius,it stop charge for about 10 seconds and then recover automatically) PRODUCT SPECIFICATIONS: AC Input: Standard 110-120 VAC, 60 Hertz (Hz) input(fit 110V household standard) DC Voltage: 48 volts (Charging output is: 58.8V) DC Charge Rate: 15 amp Compatible battery: 48V 120Ah or less