IPhone 5 BATTERY DYING LIKE CRAZY?

I dropped my phone hard like twice a few days ago no screen crack or nothin and since then my phone battery has been going down like crazy and i don't know what to do it's so snnnoying I could have it on charge for hours and it just declines so much as soon as I take it off

Try the consumer electronics forum, for starters. This one's for cars.
Try taking the battery out and refitting it, but a battery behaving like that is weak and needs replacing OR the phone is constantly hunting for signal, in which case it could be damaged. Could be both.

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