201₴
5S Balancer for LiIon Battery
BMS BoardsNumber of cells: 5S
Charge voltage: 21V
Continuous charge current: 60A
Continuous discharge current: 80A
Discharge overcurrent: 1.5 – 2.5S
Balancing current: 60mA
Overcharge protection: 4.21 – 4.29V
Over-discharge protection: 2.72 – 2.88V
Charge recovery when cell voltage drops to: 4.14 – 4.24V
Short-circuit protection
Module dimensions: 42.1mm x 61.2mm x 4mm
Out of stock
Description
5S Balancer for LiIon Battery
The BMS 5S controller is a reliable and efficient protection board for packs of three, four or five Li-ion or Li-po cells connected in series. It uses the BM3451TNDC-T28A microcontroller rated for 21V.
Features:
- Over-discharge, overcharge and short-circuit protection: The board reliably protects the cells against harmful conditions, ensuring their safety and long service life.
- Cell balancing: Provides even charging of the cells, which is key to their efficient use.
- Overheating protection (optional): Protects against unwanted heating of the cells, preserving their efficiency and durability.
- Self-recovery after a short circuit: Once the short-circuit protection has tripped, the controller automatically resumes operation without the need to connect a charger.
- Adjustable current protection: The protection and load current can be reduced by desoldering the “R003” shunt resistors.
This BMS controller is a perfect fit for screwdrivers and other cordless tools, providing reliable protection and an optimal operating mode for your equipment.









