... ,20A,25A,30A3.Output voltage : 12V,24V,48V,60V,72V General Features for li-ion li-polymer battery charger : ... service as per customers' required colors.7,Over current,over voltage.over temperature,short circuit and reverse polarity protection ... ,Storage temperature:-10 - +60 .Safety protections: Over Voltage protectionShort Circuit protectionPolarity error protectionOver power protection Warning: Don ...