Steve Loveless, former Apple Genius, provides some really thoughtful responses to poor battery life. Going to the Apple Store regarding short iPhone battery life seems like walking into the doctor’s office and complaining about pain.
One quick thing before we start — 99.9% of the time it is not actually iOS that is causing your battery to drain quickly. I guarantee you that if you erased your phone and there were no apps or email on it, it would last for ages. But, no one uses their device like that, nor should they. Hopefully with these steps you will be living in iOS battery bliss while still using all the apps and features you love.
I needed to hear Step 6: Turn off Battery Percentage. I worry far too much about my battery not remaining at 100% through any kind of use.
iOS 7 made it super fun to close your apps: all you have to do is double-click the home button and swipe up on the app preview to blast it into a digital black hole.
What most people tell you is that closing your apps will save your battery life because it keeps the apps from running in the background.