Swollen batteries are more common than you think as people often leave their phones charging overnight.
This results in too much current inside a cell of the battery, which causes a build-up of heat and gas.
Don’t ignore it. It won’t get better and it won’t get safer. Even if your device still works, the battery must be replaced immediately. Using the device or leaving it connected to power can be dangerous.
Protect your devices from overheating with StopCharge™.