Package Included

- 1 x 4S 40A Li-ion 18650 BMS PCM Battery Protection Board BMS PCM With Balanced

Description: 

- Integrated 10 low load resistance MOS tube, continuous discharge 40A, 100mA balanced current, for electric drill/sprayer/ LED lights/low power inverter.
- 4S 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)
- Charging voltage: 16.8V - 18.1V
- Continuous charge current (upper limit): 20A
- Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use)

- Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)

Balanced version: suitable for driving current below 80A, power 135W below the drill.(with balance)
1. Increased anti-interference function,
2. Reduce the large current heat by 30%,
3. Starting power increased from 135W to 220W (4S40A)

Please be sure to read the following precautions

- https://bit.ly/Precausions-BMS

Attention:

Do not mix the good battery and poor battery to use.
Please, buyers, know the professional knowledge of this module before buying