Apple just busted the biggest myth about how to save your iPhone's battery life

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Closing Apps to Save Battery Life on iOS Is Still a Myth

Closing unused apps on your iPhone won't improve its battery life.

I repeat, opening up the multitasking window and swiping apps off the screen isn't going to help your iPhone get through the day.

That's according to Craig Federighi, the head of software development at Apple.

Apple fan Caleb sent an email to CEO Tim Cook asking, "Do you quit your iOS multitasking apps frequently and is this necessary for battery life?" 9to5Mac has a copy of the email.

Federghi replied: "No and No. :-)"

The myth that closing unused apps can save battery life has been long-running and pernicious. It's widely believed, and has even been suggested by reputable publications as a tip.

That's led to the popular habit of swiping closed all of the apps in the multitasking window until it's entirely empty.

The misconception has been debunked several times, but former Apple technician and Martiancraft CEO Kyle Richter wrote a great and detailed explanation earlier this month about why closing unused apps could actually hurt your phone's battery life.

Many people think that force-quitting these apps will at the very least do no harm since "they aren't running anyways." The logic of "...you might as well quit, just in case" comes into play...

The very process of quitting an app will use up a measurable amount of battery life. There are times when the device may need those resources and it will quit the app on your behalf, which will drain the battery in the same fashion. However, modern smartphones have an abundance of memory and you would be surprised how often an app can just stay suspended forever. This is doubly true for any app that you are frequently launching and using, these apps in all likelihood will never need to be closed and the repetitive exiting and relaunching can have a very noticeable toll on your battery life.

Federghi obviously didn't go into the same level of detail as Richter, but he clearly has a great grasp of how iOS works and his word should be considered the final one on closing unused apps.

So the next time you have an Apple rumor you want busted, you might try shooting Tim Cook an email.

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See Also:

SEE ALSO: Closing all of your apps doesn't actually save your iPhone's battery

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