Can the battery be used when it’s bulging?What to do if the battery bulges

The battery bulges during the charging process, indicating that the internal plates have been deformed, and there is a great safety hazard. The battery cannot be used continuously, and the battery should be replaced in time or returned to the factory for repair. If you continue to use it, it is likely to burn, explode, and release toxic gases.

Generally, there are many reasons for battery bulge. One is long-term overcharge, which causes the battery grid to break and deform or the active material to expand to form a bulge; the other is that the battery exhaust port is blocked, plus overcharge, and the gas in the battery cannot be discharged. Going out, the internal pressure increases. This situation is extremely dangerous, and it is very likely to cause an explosion; another reason is that due to the rupture of the battery shell, air enters the battery, and the moisture in the air decomposes into oxygen and hydrogen through the reaction, causing the battery to bulge.

Under normal circumstances, the battery shell is slightly deformed. As long as the cause of the fault is found and the fault is eliminated in time, it can still be used; if the battery bulge is serious, it means that the internal plates have been deformed. There is a big safety hazard and cannot be repaired. replace. For cars with more electric equipment, you can consider increasing the battery capacity appropriately, which can avoid bulging or crystallization to a certain extent, and at the same time can increase the service life of the battery.