all apps get minimized regularily, contrast is low, even on a flight, when the phone is completetly powered down it loses battery life. Very annoyed!
iPhone 5s
Posted on Apr 8, 2014 10:05 AM
Q: why does my battery on the 5S die so fast
here are some battery tips http://osxdaily.com/2013/09/19/ios-7-battery-life-fix/
also power cycle your battery, let it fully drain to where the phone shuts down and fully charge it without using it.
If the two above doesn't help, then restore your phone from a backup, if that doesn't work restore as NEW>