Application: Motor power is between 200W-2000W,ebike bicycle ,electric scooter,electric skateboard,power wheelchair,electric two Three wheeled motorcycle. Specification : Rated voltage: 72V Output Voltage: 55-84V Combination mode: 20 series 20 parallel Number of batteries: 400 cell Single cell size: 18mm diameter x 65mm height Battery capacity: 60Ah Dimensions: 340*310*160mm (Can customized ) Total weight: 20kg around Internal protection circuit: overload, over discharge, over current, short circuit protection Battery cells inside : Big brand cells . Good quality! Life Cycles :Over 1000 times Applications: electric vehicles, model aircraft, electric tools, Battery pack diy, Golf carts, sightseeing coaches, electric Motorcycles, electric bicycles ,power wheelchairs And Others . Note: If the motor power is more than 2000W, please contact us via email, we can customize the matching battery for you, but you need to charge extra!