Battery health issues

That's correct. And as is the case with ALL batteries, with every full cycle charge, Battery Health will reduce little by little until such time it needs to be replaced. No battery on earth can retain the ability to hold the same full charge it did when new. As batteries age and are charged over and over, Battery Health declines. Your battery is 2% from perfect. It's in terrific shape.

That is a decent percentage to have. If it gets down to 80% that’s when it’s time to replace it. But that is a very healthy percentage.