Nominal voltage: 24V Battery capacity: 31.5Ah Size: 265x90x70mm Output voltage: 16.5-25.2V Combination method: 6 series 9parallel Number of batteries: 54pcs Single cell size: Diameter 18mm x height 65mm Total weight: 2600g Support motor power: 50W-550W If the motor power you need exceeds this parameter, please contact me, I can customize it for you! Support charging current: 0.2-10A The battery has a built-in BMS protection board The battery has short circuit protection, overcharge protection, over discharge protection, overload protection, and over current protection. Internal battery: Big brand battery. high quality! Life cycle: more than 1000 times Application range: Electric bicycles, airplane models, power tools, battery diy, Golf carts, sightseeing buses, electric motorcycles, electric wheelchairs, etc.