Is the little battery icon in the top right corner of your iPhone not a clear enough indicator of how much juice your battery has left? If so, here’s a trick for getting easier-to-understand information.
If you're running iOS 4 or higher, the iPhone, iPod touch, or iPad can show how much battery life they have left as a percentage. To turn this setting on:
- Tap Settings
- Tap General (in iOS 6 and higher; if you're on an older OS, skip this step)
- Tap Usage
- Slide Battery Percentage to green (in iOS 7) or On (in iOS 4-6).
This will add a numerical display of your iPhone battery life to the top right corner of the screen so you'll know when it's time to recharge and whether you can squeeze out a few more hours of use.