7S 29.4V 5A/20A Single-sided 7 String 18650 Lithium Battery Pack Welding-free Battery Management System Battery Protecti

5A Version: The circuit board can be overcurrent for a short time 5A20A Version: The circuit board can be overcurrent for a short time 20AVoltage: 29.4VCurrent: depends on the batteryFeatures:1. Can install 65-67mm 18650 battery.2. Each layer of circuit board can over-current 20A or 5A for a short time.3. With charge and discharge voltage protection function to prevent overcharge or overdischarge.4. With voltage balancing function to ensure the same resistance voltage.Note:1. Lithium battery must be pressure measured in advance and the internal resistance paired.2. Positive and negative can not be reversed.3. Support multi-layer battery board with cable connection. (But does not include cable, you need to purchase separately)Package Included:1 x 7S 5A/20A Single-sided 7 String 18650 Lithium Battery Box