... 2. Strict quality control 3. Best price 4. Welcome OEM/ODM 24V li-ion battery charger1.Intelligent charger Li-ion battery or lifepo4 battery charger2.Output ... for charger can use both 110Vac and 220Vac.2,Efficiency: 85%-90%.3,Cooling need a fan.4,Automatic,Advanced ,high ... . Also supply OEM service as per customers' required colors.7,Over current,over voltage.over temperature,short circuit and reverse ...