How To Tell If Your Iphone Battery Is Dying. If your phone is working but it seems like its overheating no matter how simple the task or how long. As well your phone dying early also points to these issues.
If the lights seem dimmer than usual then it probably means its time to replace the battery. While a calibration problem could be to blame which is easy to resolve with a full charge and a soft reset shutting down all of a sudden is more likely due to a worn battery. So you should keep your device on the charging mode for a couple of minutes.
If the phone is powering on and it is not swelling there are still other symptoms that let you know the status of your battery.
How to Check Battery Health. Tap on Battery Health. Charge Your Dead iPhone for A While. While continuing to hold the OnOff button press and hold the volume down button on the left side of your iPhone.
