[Q] [[help]] phone wont charge after using fastcharge

I had finally installed a custom kernel for my us cellular galaxy s3 (sch-r530u)
ran fast charge on it...
it charged fine but later when it had died now it wont charge at all
I have tried several AC adaptors, car charger, and my computer
all that happens is the phone tries to turn on and then dies before the OS can start
if I plug it in I do not see the charge light turn on
I do not have a warranty as I bought this phone used from a friend that upgraded to the s5.
I am assuming this could just be the battery (maybe somehow fast charge messed up my battery?)
I just wanted to check here before I went and bought anything.

Thanks for any advice.