I am on a 4 months old MBP 16" and yesterday, as usual, I was gaming on windows via bootcamp and when I game the battery slowly drops even if plugged in and that's normal. So, like every time, after I am done, I see that the battery is not at 100% in windows and yesterday it was at 85% after I closed the game. I rebooted into MacOS and I saw that my battery was suddenly at 100% which was weird since just seconds ago it was at 85%.. I went and checked the health and now, from 97% it was down to 85%! And not only that, after a few hours of use it dropped more, now it's at 82% and it seems to have stabilised itself, what happened? Is there a way to fix it or is there a problem with my battery?