Continuous working current: 100A or less Charge current: 8A or less Balanced charging: Yes Short circuit protection: yes For assembly: Nominal 3.2V batteries / four strings and more Accessory Type: Battery Accessories colour:Silver Material:Aluminum alloy + PCB Size: 87 * 35 * 8mm Package Contents: 1 * Protection Board 1 * cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.