Will Closing iPhone Apps Really Improve Your Battery Life?

It’s never fun when your iPhone unexpectedly runs out of power at a bad time, but there are some things you can do to prevent the problem from rearing its ugly head — or, at least, give your phone the chance to hang onto a charge for longer. The thing is, not all of the common preventative measures are as helpful as you might think. Case in point: closing apps to preserve battery life. Does it actually make a

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