MAHLE IX Series Ebike Batteries for the X20 drive hub mount inside the downtube for a clean, traditional look. - Batteries need software programming prior to sale. Please contact mahlesupport@qbp.com to inquire - 350Wh / 36V. 2.25kg battery provides about 140km (86mi) of range - Charge time: 3.5 hours. 80% in less than 2 hours - Dimensions 51 x 52 x 469.5mm - Top Connections: 2x HMI, Lights: 2A | 6V (12W) / 12V (24W), USB: 2A | 5V - Bottom Connections: Motor, Charge Port, Torque & Cadence Sensor