Lithium battery protection and management system Aug 23, 2021

Due to its own characteristics, lithium batteries must be used with a protection board (PCM) or battery management system (BMS). It is strictly forbidden to use lithium batteries without a protection board or battery management system. Without a protective board or battery management system, lithium batteries may pose a safety hazard, and may even cause fire or explosion. For batteries and battery management systems, safety always comes first.

For complex power battery systems, a battery management system (BMS) is generally required to monitor the status of the battery in real time to ensure the safety of the battery and the system, and at the same time improve the cycle life of the battery. A simple battery management system is generally called a lithium battery protection board (PCM) only if it has a battery protection function. Choose a suitable battery management system according to the degree of responsibility of the system, application requirements and cost.

Lithium battery management system (BMS) generally includes the following functions:

Lithium battery protection (overcharge protection, overdischarge protection, overcurrent protection, etc.), voltage/current/temperature acquisition, power balance, SOC display, charge and discharge management, abnormal diagnosis, communication, etc.


The main functions of the protection board are:

Overcharge protection, over discharge protection, over current protection, short circuit protection, power balance, abnormal detection, etc.

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