My iPhone 5 won't charge

Hello,

My iPhone 5 one day needed to have its power button replaced which, I did myself. After the repair the phone worked great and the battery soon died. When I tried to charge it it wouldn't charge at all. I ended up deciding it was maybe the connection which I replaced and still no luck. I next thought it would be the battery but before I decided to buy a new one, I had a battery that would barely hold a charge from a customer I had a few months back. I put it in and it surprisingly worked and i immediately tried to charge it but it wouldn't charge. The phone worked for like 5 minutes because the battery was bad. So now I'm in the conclusion that the phone doesn't charge the battery. I have to put in a charged battery for the phone to work but when it dies I have to replace it with a charged battery to work.

Can someone please post some suggestions to try to get this problem fixed or maybe to someone that can fix it for me. I want to get my phone working again!

Thank You

Sincerely,

Jeremiah