Is It Normal for a Battery to Get Hot While Charging?

1 Answers
VanArya
07/30/25 6:52am
It is normal for a battery to get hot while charging. During the charging process, the electrolyte inside the battery reaches a boiling state, which is why the battery feels warm. However, if the battery becomes abnormally hot (extremely hot to the touch), it may lead to thermal runaway, causing the battery to swell. This abnormal condition usually indicates severe sulfation of the car battery, which requires immediate repair. Here are some details about batteries: 1. A battery, also known as a storage battery, is a type of cell that converts chemical energy into electrical energy. 2. The commonly referred-to battery is a lead-acid battery, which mainly uses lead and its oxides as electrodes and a sulfuric acid solution as the electrolyte.
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