this post goes for everyone who is having problems with the new iOS 7 battery life. I am suffering because the new iOS 7 is 'eating' my battery!
Here it is the link for the complete guide: How to Save Battery Life - iPhone W/ iOS 7 Complete Guide - Snapguide (step by step)
Sorry I couldn't post each photo here but I am a student and the university has started. (This guide is the best I've found so far).
Hope it works for all you.