... .Intelligent charger Li-ion battery or lifepo4 battery charger2.Output current : 10A,15A,20A,25A,30A3.Output voltage : 12V,24V, ... : 85%-90%.3,Cooling need a fan.4,Automatic,Advanced ,high frequency,swich mode design allows more efficient,faster charging.5,Also ... supply OEM service as per customers' required colors.7,Over current,over voltage.over temperature,short circuit and reverse polarity protection ...