How to prolong your iOS 7 battery life

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Background app refresh lets you keep some apps from running (updating their data) while in the background

It’s been possible for awhile to run some apps in the background on an iPhone and other iOS devices but with  iOS 7, Apple extended that privilege to a broader range of apps. That can be good news — if you want an app downloading the latest stock prices, weather or other information or processing or sending out data or tracking your location while it’s not in the foreground, but it can also wreak havoc on battery life.
Read the full post at Forbes.com