Dear friend, Welcome to our store. We hope you can find what you like in our store. Specifications: Battery type: 18650 Battery model: 36V 2000mAh Power: 72Wh Combination: 7S2P Voltage: 36V Capacity: 2000mAh Size: 4*2.67*1.49 inch Weight: about 1.21pounds Plug: XT60,SL60 Outer packaging: blue PVC Package Contents: 1 x 25.2V 4Ah lithium battery Please Note: 1. Storage: please store the battery in a cool and dry place (preferably between 0 and 30°). 2. Please confirm the plug you need before placing an order. (XT60 plug by default) If you need other plug types, please leave a message in the order. 3. Since the size is manually measured, there may be a slight deviation, please understand. 4. After receiving the package, please charge it before use. Please do not disassemble or modify the battery pack privately.