How To Test Your Phone Battery Life. Apple software may notice that your battery is getting old and if your phone shuts off unexpectedly will slow your phone down in an effort to prevent it from turning off and preserve battery life. Test the battery life to see if the battery has gone bad.

If you use the List view on your Watch scroll up or down until you find the app and tap to open it. If your phone cannot charge to 100 turn the phone off and charge as much as possible Enable Safe Mode. Charge the phones battery to 100.
Tap the word Bluetooth not the switch next to it to see a complete list of connected devices and their current battery levels.
The Windows 10 Battery Report feature breaks down whether your PCs power source is ready to give out or has some life left in it. If you werent aware Android does provide some basic battery information in its Settings menu though. If you use the Grid view on your watch place your finger on the grid and move it around until you see the app icon. Further tap on the option battery info to view the details such as charging status charge level power source.
