... battery charger2.Output current : 10A,15A,20A,25A,30A3.Output voltage : 12V,24V,48V,60V,72V General Features for li- ... +60 .Safety protections: Over Voltage protectionShort Circuit protectionPolarity error protectionOver power protection Warning: Don't expose the product to rain or ... cover to prevent from being electric shocked 24V 36V 48V 20A 25A 30A high power li-ion li-polymer battery charger