... .Output voltage : 12V,24V,48V,60V,72V General Features for li-ion li-polymer battery charger : 1,Ac input: 110Vac or 220Vac as per customers ... 110V/220V voltage selector for charger can use both 110Vac and 220Vac.2,Efficiency: 85%-90%.3,Cooling need a fan ... colors.7,Over current,over voltage.over temperature,short circuit and reverse polarity protection.8,Led display charging states.9,Can ...