How to See Your iPhone Battery Life as a Percentage

How much battery do you have left?

show iphone battery as percentage
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The battery icon in the top right corner of your iPhone lets you know how much juice your phone's got left, but it doesn't offer much detail. From a quick glance at the little icon, it's hard to say whether you've got 60 percent of your battery left or 40 percent. And the difference can mean hours of battery use – or having your iPhone run out of power when you need it most. 

Luckily, there's a small setting built into the iOS that makes it easy to get more information about how much energy your phone has left.

With this setting, you can view your battery life as a percentage. With your iPhone's battery percentage in the top right corner of the screen, you'll have easier-to-understand and more accurate information about your battery. Now you'll know when it's time to recharge and whether you can squeeze out a few more hours of use.

Displaying iPhone Battery as a Percentage in iOS 9 and Up

To view your battery life as a percentage in iOS 9 and up, follow these steps:

  1. Tap Settings.
  2. Tap Battery.
  3. Slide Battery Percentage to on/green.

In iOS 9 and up, you'll also see a neat chart letting you know what apps have been using the most battery. More on that in the Tracking Battery Usage section of the article.

Enabling Battery Percentage in iOS 4-8

If you're running iOS 4 through iOS 8, the process is slightly different. Here's what you need to do:

  1. Tap Settings.
  2. Tap General (in iOS 6 and higher; if you're on an older OS, skip this step).
  1. Tap Usage.
  2. Slide Battery Percentage to green (in iOS 7 and up) or On (in iOS 4-6).

Tracking Battery Usage

As I mentioned earlier, if you're running iOS 9 or higher, there's another feature on the Battery setting screen that you may find useful: Battery Usage. This feature gives you a list of which apps have used the most battery life in the last 24 hours and the last 7 days.

With this information, you can pinpoint battery-hogging apps and then delete them or use them less and thus extend your battery life.

Here's what you need to know to use this feature:

  • To change the timeframe for the reporting, tap the Last 24 Hours or Last 7 Days buttons. When you do this, you'll see what percent of total battery used in that period was used by each app. Apps are sorted from most-battery-used to least. 
  • Most apps include some basic information beneath them about what caused the usage. For instance, 13 percent of my recent battery use came from there being No Cell Coverage and my phone looking for it. In another instance, my podcast app, Castro, used 14 percent of my battery by playing audio and by performing tasks in the background.
  • To get more detailed information about each app's battery use, tap the app or the clock icon in the top right corner of the Battery Usage section. When you do this, the text beneath each app changes a bit.

    For example, Castro (download from the App Store) now tells me that its 14 percent battery usage was the result of 2 minutes onscreen use and 2.2 hours of background activity. You'll want this information if your battery is draining faster than you expect and you can't figure out why. This can help you find apps that are burning through the battery in the background. If you're running into that issue, you'll want to learn how to quit apps so they don't run in the background anymore.

    More Useful iPhone Battery Articles

    Want to learn more about managing and optimizing your iPhone battery? Check out these articles: