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3s/4s/5s Bms 12v 16.8v 18v 3.2v 100a Bms For Lifepo4 Lithium Iron Phosphate Lithium Battery Protection Circuit Board Li-polymer Balance Charging



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. This Module has Protection against short circuits and protection against over-discharge. The module is to turn off the power supply for the batteries when reaching the maximum capacity of all batteries (balancing). The battery charge is switched off when the voltage reaches cell cutt of voltage and the discharge when the voltage drops to 2.3 – 3.0 V.

Five, four, or three batteries  can be connected to this module at the same time. By default, the circuit is assembled to work with 5 batteries. To switch to a 3 or 4 battery mode, it is necessary to solder a jumper or SMD resistor marked “0” in the appropriate places


  • FOR Li-POLYMER  LiMnO Protect Parameter(3.6V/3.7V)
  • Overcharge protect delay : 1.5-2.5S
  • Single cell battery over-discharge  protect voltage : 2.72-2.88 V  
  • Single cell battery over-discharge  protect recover voltage : 2.9-3.1 V  
  • Over charge protective current:80A
  • Over discharge protective current:80A
  • Over-discharge protect delay : 0.5-1.5S
  • Temperature protect: Yes, have a Temperature control interface.
  • Disconnect protect: Yes
  • Shortage protect : Yes
  • Shortage delay: 100-600 uS
  • Shortage protects recover mode: Off load release.
  • Contact discharge current:80A
  • Synopline discharge current:60A
  • Charging current:60A
  • balance function:yes
  • Ampere balance (Current) : 60MA

This module of the battery charge-discharge controller has 8 outputs:

  • B +: positive pole of the battery, load and charge
  • B-: battery negative pole
  • B4: midpoint assembly of 1 and 2 batteries
  • B3: mid-point assembly of 2 and 3 batteries
  • B2: mid-point assembly of 3 and 4 batteries
  • B1: mid-point assembly of 4 and 5 batteries
  • P-: negative discharge terminal at current, more than 60A
  • C-: negative terminal charge / discharge at current less than 60A

On the board there is an LED indication of the charge of each segment of the battery (continuous burning) and balancing of individual segments (blinking).

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 the protection.

The voltage range of the module is from 12.0 to 21.0 V, depending on the number of segments: 3S / 4S / 5S.

Package Include:

  • 1 x 5S 80A 21V Lithium Battery Protection Board

Best online shopping website for 5S BMS Lithium Battery Protection And Balancing Circuit Board 21V 80A at cheap price in Lahore Faislabad Gujranwala Sialkot Gujrat Sahiwal Attock Vehari Daska Rahim Yar Khan Nowshera and all over Pakistan


3s/4s/5s Bms 12v 16.8v 18v 3.2v 100a For Lifepo4 Lithium

3s/4s/5s Bms 12v 16.8v 18v 3.2v 100a For Lifepo4 Lithium

3s/4s/5s Bms 12v 16.8v 18v 3.2v 100a For Lifepo4 Lithium

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