What are the reasons for battery swelling? Many friends choose batteries, but due to improper use, they may experience swelling. Many friends do not know why this situation occurs. Today, the editor will introduce to you the reasons for swelling in batteries, hoping that friends can pay attention.
1. Ventilation hole blockage
If the ventilation hole on the charging cover is blocked, when the charging time is too long or the charging voltage is too high, gas will gradually accumulate, which will cause the pressure inside the battery case to increase, ultimately leading to battery bulging.
2. Charging time too long
Long charging time or excessive current can cause a rapid increase in electrolyte temperature, leading to an increase in gas inside the battery and causing swelling.
3. Long term continuous starting of electric motor
When starting the electric motor, the battery must provide a large current to the motor in a short period of time. Starting a large current will cause a violent chemical reaction, accompanied by the gas generated during continuous use of the starting motor. In the long run, it will increase the production of natural gas and increase the possibility of battery rupture.
4. The viscosity of the electrolyte is too high
If the viscosity of the electrolyte is high, it is easy to slow down the rate of infiltration into the pores of the electrode plate, which will also increase the internal resistance. As a result, the voltage drop of the internal resistance consumed during discharge will also increase. This leads to a rapid increase in electrolyte temperature, the production of a large amount of gas, and an increase in gas pressure inside the battery, resulting in battery expansion.
5. Too little electrolyte
Friends all know that after long-term use, the electrolyte of the battery will decrease. At this time, it is necessary to add electrolyte or distilled water, because after the electrolyte decreases, charging and overcharging can cause the battery to swell and even explode.
6. The charger is damaged
When the charger or engine is damaged and the current or voltage fluctuates, it can easily lead to violent reactions in the battery, resulting in a large amount of other components and causing battery failure.
The above is what the editor introduced to you about the reasons for battery swelling. We hope that friends can pay attention to it when using it.