Iphone 5 won't charge? Help?

So today i put my phone in its charger at 7% and looked at it 10 minutes later and it was at 5%. Figured the cord was broken so i tried a different cord, same thing happens. Try a third cord, same result. What do i do? Its the phone not the cord

Your battery is drained. Take it to an Apple store. They'll give you a replacement, for less the cost of a new one. Make sure you back up all your important stuff to iCloud first!