Iphone 5 ios 7 battery drain?

I tried everything switching off location services, using cellular data, dimmed the brightness, parallax is off, and increased contrast, background app is off. Its giving me 5 hours of backup -.-
Is this software glitch or my battery?

Try doing a hard reset. Hold the power button and home button (when off or on) until the screen goes dark for a sec then the apple logo will pop up. This should fix some issues. Hope this helped!

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