1,Sealed Lead-acid battery charger 2,Switching Mode Power Supply,MCU control . 3,DC: 48V,20A. 4,CE Certification General Features for ... ,swich mode design allows more efficient,faster charging.5,Also supply lighter weight and compact size allows on-board use and ... case, Plating by copper, Golden color or black color. Also supply OEM service as per customers' required colors.7,Over current ...