6S 22.2V 15A 18650 BMS Protection Board

The 6S 22.2V 15A Li-Ion Battery Protection Board (BMS) is designed to provide comprehensive protection and management for 6-cell lithium-ion battery packs built with 18650 cells. It enhances battery safety by monitoring charging and discharging conditions while protecting against overcharge, over-discharge, overcurrent, and short-circuit events. Featuring low power consumption and a compact design, this BMS is suitable for DIY battery packs, portable power systems, robotics, electric mobility projects, and energy storage applications. The board supports up to 15A continuous charging and discharging current while ensuring reliable battery operation and extended service life.

Features

Designed for 6S lithium-ion battery packs

Compatible with 18650 lithium-ion cells

22.2V nominal battery system support

Continuous charging current up to 15A

Continuous discharge current up to 15A

Overcharge protection function

Over-discharge protection function

Overcurrent protection function

Short-circuit protection function

Low standby current consumption

Compact PCB design

Low main circuit resistance

Suitable for DIY battery pack assembly

Improves battery safety and lifespan

Specifications

- Size: approx.50*30*2mm

- Lampshift maximum discharge current: 15A

- Instantaneous discharge current: 25A

- Charging voltage: 25.5V

- Charging current: 15A (MAX)

- Overcharge detection voltage: 4.28 ± 0.05V

- Overcharge protection delay: 0.1S

- Overcharge release voltage: 4.08 ± 0.05V

- Over discharge detection voltage: 2.55 ± 0.08V

- Overdischarge detection delay: 0.1S

- The overdischarge release voltage: 2.9 ± 0.1V

- Overcurrent detection voltage: 150mV

- Overcurrent detection delay: 9MS

- Overcurrent protection current: 30 ± 3A

- Overcurrent protection release condition: Disconnect the load

- Short circuit detection delay: 250uS

- Short circuit protection Release condition: disconnect negative open

- Main circuit conduction resistance: ?20m?

- Working current: ?30uA

- Sleep current (battery over discharge) ?10uA

- Temperature range: -30 / + 80 ?

Tutorials

- How to make 24V RECHARGEABLE BATTERY - 6s lithium ion battery pack