PCB Board for Battery Protection

Core Protection Functions

1. Overcharge Protection

   When charging with a certified standard adapter, the protection board will activate the overcharge protection mechanism automatically once the cell reaches the rated cut-off voltage. It disconnects the charging loop to prevent continuous overvoltage charging and avoid cell aging, bulging or thermal runaway.
2. Over-Discharge & Short-Circuit Protection

   In the event of instantaneous positive and negative electrode short-circuit or deep over-discharge caused by excessive load, the protection circuit will quickly cut off the discharge loop to isolate abnormal faults. After the short-circuit risk is eliminated, the battery can restore normal charging performance.
3. Over-Current & Abnormal Short-Circuit Protection

   The protection board supports rapid response to abnormal current surge and accidental short-circuit faults. It limits output current and locks the circuit within a safe range. After external wrong connection or short-circuit faults are cleared, the battery can resume stable charge and discharge through standard charging equipment.