2S 20A 7.4V 8.4V 18650 Li-ion Lithium protection board/BMS board Balanced(Green)

This BMS module has 5 pins:

B+ : Battery positive pole B- : Battery negative pole BM : Mid-point of a battery assembly P- : Negative charge / discharge terminal P+ :Positive charge/discharge terminal

If the maximum permissible value of the supply voltage is exceeded, the charge controller activates the “protection” mode. In order to restore the module, it is necessary to re-apply voltage to the input of the BMS board or wait a while until the charge controller automatically disables protection.

Power is supplied to the module from an external power source. The voltage range of the module is from 7.4 to 8.4 V. For charging, you can use a step-up voltage converter with a current limiter. Please note that this module is not a charger.

Features:

1. Small size designed for a four-cell battery pack.
2. Simple and convenient circuit for easy connections
3. Over-charge/Over-discharge Protection.

Package Includes:

1 x 2S 20A 18650 Lithium Battery Protection Board