48V 13Ah 1000W 750W Downtube Lithium Li-ion Battery for Electric Bicycles E-Bike. Rated Voltage / capacity: 48V / 13Ah. W: 3.9KG/4.40KG. Batteries combinations: 13-S, 6-P. Component: Li(NiCoMn)O2. Discharge Standard current:? 30A. Discharge Max current:? 60A(100us). Discharge Cut-off voltage: 39V. Discharge cycle life: 1000 times(? 80%). Charging method: CC/CV; Standard:0.2C5A×5hrs; Quick:0.5C5A×2hrs. Charge Max current: 2A-5A. Charge Max voltage: 54.6V. Working temperature: Charging 0°C45°C; Discharging -20°C60°C; Storage 0°C30°C. PCB board Protectio: Yes. BMS board Protection: Yes. 1 x Battery with ABS case(Base discharge). Customer satisfactory is most important to us. Please give us at least 24 hours to reply! Our office hour:-9:00a. 6:00 p. (GMT+8) of Monday to Friday.