A 4s lithium 18650 battery BMS packs PCB protection board is a small circuit board that is designed to protect the battery from various risks like overcharging.
The nominal voltage of the 18650 Lithium Ion battery is 3.6 volts. However, when fully charged, the voltage can range from 4.2 to 4.35 volts, depending on the specific type and model of the battery.
Charging NiMH batteries is a simple and straightforward process. Still, it would be best to keep some important things in mind to ensure that you are charging them properly and not damaging the battery.
NiMH batteries will last about five years or so and are used and recharged regularly. However, the life span of a NiMH battery will be shorter if it is not used or recharged for a long time.
