What Causes Iphone Battery To Swell. Batteries that are either defective or needs replacements. This is a function of the phone not the charger.

The gases are produced due to electrochemical oxidation of the electrolyte. Since the phone. Its due to a swollen batteries.
How to handle an iPhone Mac or Apple Watch with a swollen battery.
In both instances the battery will swell beyond its normal shape. This article will primarily focus on battery swelling and its causes which can be divided into two categories. As the battery ages this chemical reaction no longer completes perfectly which can result in the creation of gas. I ignored at intial stage and the battery continued to swell beyond the back plastic panel.
