Why does the battery get hot after adding distilled water?
1 Answers
The battery heating up after adding distilled water is due to the reaction between the generated oxygen and hydrogen from the electrolyzed water, which releases heat. Electrolyte requirements: The electrolyte must be prepared using chemically pure sulfuric acid (or specialized electrolyte) and distilled water. Industrial sulfuric acid and ordinary water, containing impurities such as iron and copper, can cause self-discharge and damage to the plates, and thus should not be used in batteries. The specific gravity of the electrolyte should not be less than 1.19. When adding the electrolyte, first add distilled water to near the minimum mark, then add pure sulfuric acid (or specialized electrolyte) to achieve a specific gravity of around 1.2. The amount of liquid added should not exceed the upper limit mark. Precautions during charging: During the charging process, when the voltage of a single cell in the battery rises to 2.4V, more bubbles will start to appear in the electrolyte. At this point, the charging current should be halved. After charging, a discharge test should be conducted to avoid situations where a sulfated and damaged battery appears to be charged on the surface but is actually unusable. Therefore, before charging, observe the battery for any sulfide sedimentation, and replace it if necessary.
