Brandaunstarwei ColourGreen,Red Output voltage54.6 Specification metOCP Input voltage240 Volts Current rating4 Amps Input: 100-240Vac, 1.5A; Output: 54.6V 4A Connector size: DC plug 5.5*2.1mm and 5.5*2.5mm Charger for 13 Series 13S 48V Lithium Li-ion Li-poly battery. Indication Light: Red Light when charging, Green Light when fully charged Security Protection: OVP(over-voltage protection)/OCP(Over current protection)/Overload protection/ Short-circuit protection.