What Causes The Phone Battery To Swell. It barely fit in place and maybe with time it might have even cracked the phone. As it is a chemical reaction that powers the battery it is the same chemical reaction that causes it to swell.
Swollen batteries while not common are a significant risk. Fortunately the devices that utilise lithium-ion batteries must contain circuitry that shuts the battery down when these cycles are detected. The swelling is the result of too much current coursing in a noncontrolled fashion.
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Lithium-ion cells can swell due to many reasons but somehow the issue of deep discharge swelling and the related hazards with charging such a battery seem to be widely underestimated. It barely fit in place and maybe with time it might have even cracked the phone. Of the common signs your battery is failing a swollen battery is the most urgent and dangerous. A quick search reveals the most common cause.
