Battery life on iPhone 4 ios7?

Since I updated my phone ios7.0 my battery will die really fast I would have 100% in the morning and have 50% by 10am. What is going on? Is it just my phone or everyone's?

It's not you. It's iOS 7 didn't play as well with the 4. Also because of the chip set, many complained out the performance and speed issues.
https://discussions.apple.com/...0&tstart=0
But there's hope yet. 7.1 is hopefully a fix for this…
http://mashable.com/2014/03/11/ios-7-1-iphone-4/
But it still has a list of things to fix.
http://www.digitaltrends.com/mobile/ios-7-problems/#!NpwEC
Best luck.

As savanah said

and

this and similar articles helped me when I ran into trouble

http://ios.wonderhowto.com/how-to/stop-your-battery-from-draining-after-updating-ios-7-ipad-iphone-ipod-touch-0148680/

I had the same problem with my iphone4 till i looked up ways to save my battery. The main causes of battery loss can well obvouisly running battery draining apps which are mostly things like youtube. Second your battery will drain because even when you tap out of apps they don't actually close, they will keep running right where you left off, which is part of the update. To close the app you press the home button 2 times and mutliple screens will pop up showing all your open apps. To close them simple drag the screen up towards the top of your iphone. You have to do it one at a time but it works, this will also make your phone faster too. Hope this helped!

Yeah, the iPhone 4 just does that on iOS 7. It really wasn't designed to handle all the extra power draw of that OS.

Hggh