My iPhone 5 doesn't work unless its plugged in?

It will say its fully charged if I unplug it from the adapter, but after about a minute it shuts off. Even if I turn my phone on at 45 percent, it'll turn off after a minute of use. The only way I can use my phone is if it's plugged into the wall.

Is something wrong with my battery? If so, would the apple store be able to help?

Well then plug it in.

I would take it to your nearest apple store. They can probably fix that for free even.

Change the battery

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