... charger Li-ion battery battery charger2. Output current : 10A,15A,20A,25A,30A3. Output voltage : 12V,24V,48V,60V,72V4. Widely used for electric ... OEM service as per customers' required colors.7,Over current,over voltage.over temperature,short circuit and reverse polarity protection ... remove the cover to prevent from being electric shocked 12V 24V 36V 48V 20A 25A 30A high power SLA li-ion battery ...