Mobile phone battery swelling

[neku]

The battery of a Nokia basic phone is swelling and the cover of the phone is falling off. What could be the reason why the battery is swelling, when the phone is switched off, and how to prevent swelling of mobile phone battery?

 

[King Belieal]

When a mobile phone battery swells, it is clear that the battery has finally gone. It is better to replace the battery immediately else it can cause more damage to the phone.