How to Deal with Battery Overheating?

1 Answers
EmersynDella
07/29/25 6:38pm
Battery overheating during charging may be caused by prolonged use leading to aging, increased internal resistance, dried-up electrolyte, or internal short circuits. As the battery undergoes repeated charge and discharge cycles, water molecules within gradually deplete, resulting in heat generation during electrochemical reactions. If the battery shows severe deformation, replacement is recommended. There are two types of battery overheating: discharge-induced and charge-induced. Check the battery's exterior. If deformation is minimal or absent, you can fully discharge the battery (single-cell voltage below 10.5V), pry open the cover, remove the valve caps, and use a clean syringe to inject approximately 10ml of distilled water into each cell. Reconnect the charger, monitoring the liquid level to ensure surface moisture. Once the charger indicator turns green, remove excess liquid, reinstall the valve caps and cover, and the battery is ready for use.
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