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1S 5A 18650 Lithium Battery Protection Board

1S 5A 18650 Lithium Battery Protection Board
1S 5A 18650 Lithium Battery Protection Board
Ex Tax: ₹33.90
  • Stock: In Stock
  • SKU: TECH1956

BMS (Battery Management System) – a battery management system that is designed to monitor the status of batteries, control the process of charging/discharging the battery, etc.

1S 5A 18650 Lithium Battery Protection Board comes with pre-soldered nickel strip ready to use for a single 18650 rechargeable cell. The module has protection against short circuit, overcharge and over-discharge. One of the functions of the charge controller is to turn off the power supply for the batteries when the maximum capacity of at least one battery is reached. This BMS controller is designed for more than 30,000 hours of operation. The maximum allowable current is 5A.

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.


  • Small size designed for a four-cell battery pack.
  • Simple and  convenient circuit for easy connections
  • Over-charge/Over-discharge Protection.
  • Pre-soldered Nickel Strip ready to mount on battery.



HX 3450

IC Components

DW01 + 8205A

Charging voltage


Overcharge Detection Voltage

4.25 ± 0.05V

Overcharge release voltage

4.23 ± 0.05V

Over discharge detection voltage

2.45 ± 0.1V

Upper Limit Continuous Current


Overcurrent Detection Current


Length (mm)


Width (mm)


Height (mm)


Weight (gm)


Wiring Instructions:

  • B+     :  Connected to the battery positive.
  • B-      :  Connected battery negative.
  • P+     :  For the battery pack output-input positive
  • P-      :  For the battery pack output-input negative

Package Includes:

  • 1 x 1S 5A 18650 Lithium Battery Protection Board

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