To extend batery life, how do I close apps on an iPhone 5?

To extend batery life, how do I close apps on an iPhone 5? - 1

Press and hold.

Double click Home button & slide up the apps in the multitasking area to close them (assuming it is running iOS 7 or later).

If on iOS 6 or earlier, same double click Home button & press the red icon next to the app to shut it down

You can't extend battery life on the iPhone 6. Closing apps will not help

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