what causes battery to swell
Heat: Extremely high temperatures in the battery as a result of charging or rapid discharging from using the device, could have an effect on the chemistry of the battery. This negative chemical effect could cause your battery to get swollen. Faulty Manufacturing: This is a case of the manufacturerâs issue. Itâs not your fault; itâs a problem which occurred within the manufacturing process, thatâs why your poorly-made battery has swollen.
The cell plates most often expand due to overcharging of the battery. The battery may also expand due to shorting of the terminals of the battery. Both these situations results in heating up of the cell plates inside the battery. The lead of the cell plates has a high expansion rate when heated.