Sometimes your iPhone battery will drain at what you would consider a normal rate, throughout the day and other times it seems to be draining much faster than usual. After you’ve done the normal things such as lowering the screen brightness, if the excessive drain continues, then more than likely there is an App to blame that’s running in the background and sucking up all your juice. But which one? iOS 8 is supposed to let us know, but iOS 8 isn’t out yet. In the meantime, there’s an App called Normal: Battery Analytics. This app aggregates anonymous (with user permission of course) data from hundreds of thousands of users so that it can accurately pinpoint data hogs running on your device. Once the battery hogging app(s) have been identified it gives you recommended actions to take. In most cases you can simply quit (not just close) the app to resolve the problem. You can also turn off background App refresh in the offending apps.
I’ve been running this app for about a week now and it has made a difference. If you need to see which Apps are killing your iPhone battery, Normal will help.