1. Overcharge protection function
The overcharge protection function means that when a certain voltage (hereinafter referred to as the overcharge detection voltage) is reached, it is prohibited to continue charging by the charger. That is, the MOS tube that controls the overcharge is turned off, and the charging is stopped.
2. Over-discharge protection function
The overdischarge protection function stops discharging the load when the battery voltage becomes low. Put the MOS tube that controls the over-discharge into the off state and prohibit its discharge. This process is just the opposite of the action during overcharge detection.
3. Overcurrent protection function
The overcurrent protection function is to stop the discharge of the load when consuming a large current. The purpose of this function is to protect the lithium-ion battery pack and MOS tube, and ensure the safety of the battery under working conditions. After overcurrent detection, the battery will return to normal state after being disconnected from the load and can be recharged or discharged.
