3S (BMS) Lithium Battery Charger Protection Module 25A 12V

85.00 EGP

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SKU: MD-31094 Category: Tags: , ,

Lithium Battery Charger 3S Protection Module

  • Lithium Battery Charger

  • This is 3S 12V 25A 18650 Lithium Battery Protection Board 11.1V 12.6V High Current With Balanced Circuit Over Charge Over-Discharge Over Current And Short Circuit Protection Function.
  • Board charging and discharging are the same port, the board includes the balanced circuit.
    When the charge balance, the board will be a bit warm, even after disconnecting the charger, some are still in the balance, will continue to warm for a while until below the equilibrium break threshold.
  • The protection board cannot be used for iron lithium polymer battery (for other batteries, no matter what material, as long as the over voltage and put voltage can be used for cutting), electric finish machinery, electric bicycle batteries, car, and motorcycle starter battery protection.
Applicable to the following products (within rated power):
  • Electric drill, 775 motors (6A-10A), small power inverter, small power vacuum massager battery, LED lamp, 12V standby power electronic products, 12V120W car washing pump, battery, solar street lamp monitoring standby power supply, and other products.
  • Rated current can’t over 25A, it can’t exceed 50A per 0.5 seconds.


  • electra-group.com
  • High Quality
  • Short circuit protection.
  • Overcharge protection.
  • Over-discharge protection.
  • Overcurrent protection.
  • Can be applied to various 3.7V lithium core.
  • Compact size and lightweight.
  • Fine workmanship and durable.
  • Ensure the security of battery pack.
  • Stable performance.
  • Fine workmanship and durable.
  • Suitable for:
  • 10.8V (Rated voltage of polymer battery)
  • 11.1V (18650 or 3.7V lithium battery rated voltage)
  • 12.6V (Lithium battery full charge voltage)

Welding point Description:

  • B : Connect to the battery positive
  • B- : Connect to the battery negative
  • BM: Connect to the battery 1 and battery 2 joining point
  • P : Connect to the charge / discharge side of the positive terminal
  • P- : Connect to the charge / discharge side of the negative terminal


  • Strictly according to the diagram wiring: 0V(B-)3.7V(B1)7.4V(B2)11.1V(B ), Do not deliberately short circuit.
  • After the line is connected, Need to charge first, then have output.
  • When the battery is connected in series with 3 groups, Please ensure that the voltage of each battery is the same. If not same, please fill in each set of batteries and then use.
  • Do not mix the good battery and the battery.
  • The capacity of the battery internal resistance is closer will be better.
  • Attention: Do not mix the good battery and poor battery to use. The internal resistance of 3 battery capacity are closer will be better. Please buyers know the professional knowledge of this module before buying

Package Included:

  • 1 X 3S 25A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board Module
    Lithium Battery Charger

Lithium Battery Charger 3S Protection Module


Additional information

Weight 0.12 kg
Dimensions 5.6 × 4.5 × 0.12 cm
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