How to repair the leakage of Bosch 12 volt battery protection board?

If the protective plate is broken, only one can be replaced. If the voltages are different, a lithium battery voltage balancer can be used to balance the voltage difference. This equipment belongs only to Brother Xiao Li. It seems that they are engaged in lithium battery maintenance, repair and assembly technical services, and have also obtained the national patent for lithium battery life repair technology, so repairing lithium batteries is still very reliable.

There are many reasons for electric leakage:

1. Over-discharge protection: When the battery is about to run out, when the voltage reaches the required minimum, the protection board will also be closed, and the product will automatically shut down, thus forming an over-discharge protection function.

2. Overcharge protection: When the product is charged, when the voltage reaches the highest battery voltage (4.2v), the protection board will be automatically turned off, indicating that it is full and will not be charged. And an overcharge protection effect is formed.

3. Short-circuit protection: When the battery is accidentally short-circuited, the protection board will automatically close within a few milliseconds and will not be energized. At this time, it is no problem that the anode and cathode contact each other, and the short circuit protection formed will not cause explosion.

4. Over-current protection: When the battery is discharged, the protection board will have a maximum current limit, which is different for different products. When the discharge exceeds this current limit, the protection board will automatically close.