This E-Bike battery charger has a 48V, 2.0A (2000mA) output and is rated at 500W. Applicable battery is 48V-20E and 48V-20E-T(B). Charger plug is a Three Pin BS EN 60320 C13 connector. Pin configuration from left to right is N-, GND, L+. Be sure to use this charger only in designated applications with corresponding power ratings and polarities. We do not warrant this product against misuse, all chargers are tested before leaving our facility. Voltage: 48V Amperage: 2A (2000mA) Polarity: Reverse Connector: C13