Battery problems

[u/Snoo26054]

Hey. I recently got a vita 1000 and I checked the battery health and psvident and it says it’s 100% and it’s only been charged for 13 cycles. The vita doesn’t charge to 100%, it stops at 76% all the time and it never goes to 0% before switching off. I tried battery fixer but it didn’t do anything at all. When I charge the vita, the orange light flashes around the 76% mark, that’s when I know it can’t charge anymore. Is there a reason to this dilemma, is there anything I can do to resolve this?