Reliance Power Parts 13-030 - 30 Amp Golf Cart Voltage Reducer (36v/48v to 12v) - 360 Watts! with Dual Power Source 12V@30A Voltage Reducer Reliance Power Parts: 13-030 Works with 36V and 48V applications Connects entire battery pack instead of just one battery which improves the life of the battery pack Industry leading design feature BOTH constant and switched 12V outputs