This battery charger uses an internal microprocessor to intelligently charge your golf carts batteries based on real-time battery pack capacity and ambient temperature readings. 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 FITS: Made for 36 volt EZGO Marathon/Medalist carts or any 36V golf carts that take the flat SB-50 plug! Recommended For: All 36 volt golf carts that take the Andersen SB-50 plug PRODUCT SPECIFICATIONS: AC Input: Standard 110-120 VAC, 60 Hertz (Hz) input(fit 110V household standard) DC Voltage: 36 volts (Charging output is: 44.1V) DC Charge Rate: 12 amp Compatible battery: 36V 100Ah or less then 100Ah 8-10 hours Recharge Time Silver Aluminum with fins design as heat sink Waterproof: IP68 Plug Standard: Anderson SB-50 Plug Equipped with LED Light as indicators to show charging status 100% full load burnt-in test LED Display: standby state( connect the ac power, not connect the battery), the green and yellow lights flash alternately charging, the power 80%, yellow light on Fully charged, green light on Before your purchase, please check your original charger and make sure the OUTPUT and CONNECTOR size matches. Note: This charger with a Relay for Reverse Polarity Protection, it doesn't have output voltage and current when charger AC power on but disconnecting with the battery. It will have voltage and current output when it connects with battery. PACKAGE INCLUDES: 1x Power Adapter with US Mains Lead Cable