Just an update
So I took the phone to an Apple Store. They ran diagnostics on it. The battery was at 68% capacity. They say if it's below 80% it's considered dead. The reason it was shot was actually 2 issues. First issue is they're good for 1000 cycles. Mine was 1400 cycles. Secondly the phones motherboard was pretty much fried. They said $80 to replace the battery but it would get fried too since the motherboard was on overload continuously. Or $280 to replace the phone. I opted to upgrade. So now I'm the proud owner of a 6S Plus 64GB. I decided to do the 18 month ATT program so I'll either own it after 18 months or can trade it after 12 months. So now I can upgrade every new iPhone if I choose. I lost my unlimited data but will probably do the Direct TV special which will give me unlimited data again at the 10GB price.