1,Intelligent battery charger, controlled by Microprocessor 2,Supply 48V,60V,72V,96V etc. 3,Effiency: 95%,CE certificate. ... frequency,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,over voltage ...