My iP 5 is draining very fast on iOS 8.1. I've tried everything I can think of to remedy the issue. The closest Apple Store is 80+ miles away. Verizon is here, but I don't know if they would be much help. I also can't log in to the iMore app nor iMore on TapaTalk. Very frustrating.
I'm on my second bad battery with my iPhone 5. If you start the troubleshooting phase online, diagnostics can be run on your phone and the results uploaded (it all happens fast) and can tell you if your battery is bad. Then it will connect you via phone or live chat with a representative.