I fear my battery might be damaged, but then again could be just my charger.

I have tried hard reset, and uninstalling battery drivers (Microsoft). It doesn't need any battery replacing - besides, my battery is internal so I can't remove it. What is his logic? I tried the HP diagnosis, and it reported that my battery is healthy and all OK. What is strange that when I asked a user, he replied that the laptop is trying to protect itself from further damage by doing this. Yesterday, I had this dreadful 'Plugged in, not charging' issue, and I temporarily fixed it alongside with the repeated charging and got my laptop to charge to 100%, but the problem reappeared today. When the laptop stops charging, the LED is white, despite not being fully charged, and if I replug the charger, the LED is still white. It can charge, yes, but the issue is that it only charges up to around 78-80%, then it starts charging spontaneouly. So my problem is.My battery will not charge beyond around 80%.

Yesterday, this problem has been starting. My model is HP, and entering my model number lists it as Energy Star. I've asked this issue on other Discord channels, but I wanted to post it here.

Hp pavilion wont charge