How to View Detailed Battery Info on Your iPhone
By Conner Carey
In iOS 9, you can view specifics on which apps are using your iPhone’s battery. If you find your battery is draining quickly, viewing detailed battery info is a great way to figure out why. You can see which apps use chunks of your battery life, how long the app was active, and how long the app was running in the background. This is also a great way to see how much time you're spending on a particular app; in case you're still in denial about your Facebook habit.