The lithium-ion battery protection board is a very important component for the battery, which acts as a controller for the battery. So what are the specific functions of the lithium-ion battery protection board?
Different lithium battery manufacturers have different functions for lithium battery protection boards. But in general, the role of the lithium-ion battery protection board has at least the following points:
- Overcharge protection
The charging time is generally more than an hour, and it is impossible for people to stay by the charger and wait for the battery to be fully charged. It takes so long to have a function that can automatically power off and stop charging after the battery is fully charged. This is one of the functions of the lithium-ion battery protection board.
- Over-discharge protection
It is generally not recommended to use the battery to the end, because it is easy to cause the battery to be over-discharged and damage the battery. At this time, the over-discharge protection function on the lithium-ion battery protection board is required to shut down the battery at a required minimum value of the voltage to prevent battery damage.Also read:how to charge a 20v lithium battery
- Short circuit protection
It is impossible for every battery to be 100% perfect. There will always be a small part of the battery when there is an internal short circuit. At this time, the lithium-ion battery protection board will close the protection board within a few milliseconds. The battery is protected.
- Overcurrent protection
When the battery is in the discharge period, that is, in use, the protection board has a function of limiting the maximum current. As long as the discharge current exceeds this current, the lithium-ion battery protection board will automatically shut down, cut off the power supply, and there will be no response. The excessive current also protects the battery from damage.