Item Type:Protection Board_x000D_ Model: HX-4S-A01_x000D_ Size:72 X 17 X 3mm / 2.83 X 0.67 X 0.12in _x000D_ Overcharge Voltage Range: 4.25~4.35V_x000D_ Over-Discharge Voltage Range: 2.3~3.0V0.05V_x000D_ Upper Limit Working Current: 6~8A_x000D_ Upper Limit Instantaneous Current: 12A_x000D_ Quiescent Current: Less Than 30A_x000D_ Internal Resistance: Less Than 100m_x000D_ Charging Voltage: 16.8~17V_x000D_ Working Temperature: -40 C ~ 50 C_x000D_ Short Circuit Protection: Protection, Charge Recovery 1High continuous current,resistant to large power flow._x000D_ 2Convenient to install,easy to manipulate,suitable for many scenarios._x000D_ 3The board has short circuit protection function for better reliability._x000D_ 4The maximum working current is 6~8A with a maximum instantaneous current of 12A._x000D_ 5Wide range of applicable temperature ,suitable for many places._x000D_P+ and P- are input and output. When combined, the battery voltage, capacity and internal resistance must be paired well. After the connection is completed, the battery is charged with 16.8V voltage.1 x Protection Board