Why does my iPhone battery die in 2 hours?

My iPhone battery will literally die in about 2 hours. Why is this? I have a iPhone 4S 16gb running 7.0.6… Would buying a new battery and putting it in the phone make it just like new and give me a normal all day battery like what my buddy's get? I'm very frustrated.

Ram killer is no use for Iphones, that's mainly for Android. I have this problem before, i guess you have used OTA to updated your phone to 706. You could download a 706 firmware and use itunes to restore to a fresh new system, see if its work. Remenber turn off the auto time zone in time setting and Location Service, that's really a battery killer. Any more questions, you can email me, roy612723@gmail.com

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