Iphone completely dead.after faulty charging dock?

My iphone charging was rapidly flipping between on and off, and it wouldnt charge. And i took it to the apple store, they said it was the charging dock. So i have left it plugged in for a couple of hours, and it stored about 5% power and worked for a bit, then powered down.

Before, it said for about 2 days, it needs to be plugged in to charge, Now, it doesn't even show that, it's completely dead…

… Is there any chance that i have completely wrecked my iphone by keeping it on charge when the charging dock is faulty

Sounds like the battery is destroyed. I would just make an appt at the apple store, and if my contract was up then I would just trade it in and put the money towards an upgrade instead of old version, especially if you get hte discounted contract deal.

Just change the battery. It is pretty straight forward. Try www.howtoidevice.com if not the juat look around youtube!