Specification:Input:100V-240V /50-60Hz AC PowerStandard USA AC power plug. For other country's Plug adapters, click herePatented 4 Stage charge algorithm guarantee 100% Protection (check the Datasheet for details)Automatic change 9S 33.3V Li-Po/Li-ion battery from any status. Output voltage21.6 V DC ~ 41.6V DC Battery capacity extend2.6Ah ~ 48Ah Number of cells9 Li-ion / Li-Polymer cells in series Charge current3.2A 0.1A Max. delivered power121W Rated AC input100~240VAC 50/60Hz Input voltage90~264VAC Rated input current0.83Arms Max. input power142.5W Dimension158mm x 90mm x 57.5mm Weight642gAccessories Included Premium metallic 3 pin connector (positive, null, negative) 1 standard Tamiya Female connector. Alligator clips red + black.Caution The charger is designed for indoor use only. Don't leave the charger unattended during charging. The Charger should be positionedhorizontally and work in well ventilated condition, avoid water andkeep away from flammable explosive goods.Don't cover the charger when charging, ambient temperature shall not be more than 40oC Don't touch the plug.Don't leave the batteries and chargers on wood surface or carpet. Cut off the power supply before connect or disconnect the charger with batteries.Don't try to disassemble the charger, High voltage inside, danger!Download product manual here.