In our fast-paced digital lives, smartphones are essential communication, work, and fun tools. However, a swollen battery can pose serious risks to your device and safety. Knowing why this happens and what to do right away can make a big difference. Understanding the Cause Heat Buildup Heat buildup is one of the leading causes of battery swelling. These factors can stress the battery, whether from excessive charging, high temperatures, or heavy use. Lithium-ion batteries, whi