Reporter Adrian Kingsley-Hughes has been tracking how much his battery life drains after six hours of use with each firmware update. Pre iOS 7.0, six hours of use would take his fully charged iPhone down to 74 percent. Following the upgrade to iOS 7.0, his battery life dropped slightly but came back to normal after a few recharge/discharge cycles. However, following the update to iOS 7.1, battery life dropped all the way down to 48% after six hours of use.
Thankfully, the iOS 7.1.1 update appears to have resolved the issue:
via iClarified – Apple News and Tutorials http://ift.tt/1nJwQ2M