... charger Li-ion battery or lifepo4 battery charger2.Output current : 10A,15A,20A,25A,30A3.Output voltage : 12V,24V,48V,60V,72V General Features for li-ion li-polymer battery charger ... make 110V/220V voltage selector for charger can use both 110Vac and 220Vac.2,Efficiency: 85%-90%.3 ... ,Over current,over voltage.over temperature,short circuit and reverse polarity protection.8,Led display charging states. ...