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BMS PCM PCB 3S module - 12.6V - 40A - ver. BALANCE charging and protecting Li-Ion cells for 18650 cells
- The BMS 3S electronic system in the BALANCE version functions as a battery protection against over-discharge, over-charging and has a balancer function. This module also acts as a charger for these batteries.
Li-ion 3S charging module - BALANCE - 12.6V - 40A

BMS 3S electronic system in BALANCE version working as a battery protection against over-discharge, over-charging and also with balancer function.
- Allows you to build a safe battery pack that does not need to be charged with special chargers for li-ion batteries.
- The 2-in-1 module was created to keep the cells in the best possible condition by not allowing them to overcharge as well as over-discharge. One module here replaces the charger and security module.
- In version 2.3, the anti-interference function has been improved, the heat dissipation has been reduced by 30% and the boot current has been increased.

More information about BMS modules, their application and how they work HERE.
NOTE!!! this module comes in 3 versions: Standard, Balance, Balance + short circut.
Product features
- Built-in balancer - 100mA discharge current
- Protection against overcharging.
- Over-discharge protection.
- Can be used for a variety of lithium cells 3.7V.
- Compact size and lightweight.
- Ensures the safety of the battery
Technical data
- Charging voltage: 12.6V - 13.6V
- Maximum discharge current: 40A
- Continuous charging current (upper limit): 20A
- Dimensions: 60x41x3.4mm
Included
- BMS PCM PCB charging and protection module for Li-Ion cells - 3S - 12.6V - 40A - 1 pc.
Guide


How to select BMS modules for 18650 batteries
BMS modules are important elements in battery management to protect the battery from damage.
To choose the right BMS module for your 18650 battery, pay attention to the number of supported cells, operating voltage, protection features, and battery compatibility.

BMS Li-ion Co To Jest i co trzeba wiedzieć o modułach i ogniwach litowych
Witam wszystkich w tym wpisie chciałbym poruszyć temat ogniw litowych, jak je ładować, przechowywać, jakie są ich najistotniejsze cechy a także jak takie ogniwa rozładowywać i o nie dbać aby posłużyły nam jak najdłużej i bezpiecznie.
W tym materiale poruszymy tematy:
Jaki moduł BMS wybrać i na jakie parametry zwrócić uwagę?
Jaki prąd będzie mi potrzebny?
Jak podłączyć moduł BMS?