48V 20Ah Li-Ion battery, 13S 6P 20000mAh battery pack, rechargeable and customizable, for 1000W 750W 500W 350W 250W 200W e-bike motorBattery pack parameters:Nominal voltage: 48V （with Voltage Display）Output Voltage: 35.7-54.6VRated Capacity: 20000mAh (20Ah)Combination: 13S 6PNumber of batteries: 78 pcsBattery dimensions: 249x 125x 70mm/9.8x 4.9x 2.75inchAdapter motor power: 100W 200W 250W 350W 750W 1000WWeighs: about 4kgStandard charging current: 2ACharging time under standard charging current: about 4-6hLife cycle: more than 1000 timesDischarge Connector: XT60 type (For other types of connectors, please contact me)Internal BMS protection circuit: overload, over-discharge, over current, short circuit protectionList:1* 48V 20Ah E-bike lithium battery（Built-in BMS）1* 54.6V 2A ChargerNotice:Due to manual measurement, there may be ±3mm error, please understandIf you have any questions, please contact me through the Amazon messaging system, and I will reply to you within 24 hours.