Battery health degrading
My SE 2020 which is now 2 yrs old had a battery health of 86% but now 3 days later, i noticed that it had dropped to 83% which sorta means my battery is gonna last 83 days more?!
iPhone SE, iOS 15
Yes. It’s effectively rounding error.
If you see a significant long-term acceleration - e.g. 3% over a 60-day period - it might indicate a developing issue.