My iphone 4s is losing battery extremely quick?

Lately my phone has dropped battery percentages so quickly. I let my phone charge overnight and it was 100% when I left my house this morning. On my way to work, I used my phone to play music in my car (via bluetooth). When I got to work at 9am it had went from 100% down to 73% in just 45 minutes.

Now, it is noon and my phone is on 18%. I haven't used it at all since I got to work this morning besides responding to a few text messages.

Do you have Location services on some apps? Probably some apps are running when they shouldn't be. If its not that maybe something is just wrong with the phone, if there's don't waste your money on fixing it, buy the new IPhone!

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