... ,Switching Mode Power Supply,MCU control . 3,DC: 12V,25A. 4,CE Certification General Features for 12V/25A battery charger : 1,Ac input ... 110Vac and 220Vac.2,Efficiency: 85%-90%.3,Cooling need a fan.4,Automatic,Advanced ,high frequency,swich mode design allows ... more efficient,faster charging.5,Also supply lighter weight and compact size allows on-board ...