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Hi,
After doing this update, I've notices that Menu Bar displays 99% when battery is fully charged and Mac is still connected ti power adapter. As soon as I unplug the power supply, it shows 100% and when I plug it back in, it immediately goes back to 99% as fully charged percentage.
Did anybody else encounter this issue?
MacBook Pro 13″, macOS 11.2
Hi jaffastyle,
We'd like to help share some information regarding this, as this is expected behavior. For an article that is Get help with your Mac notebook battery you will find information under "If your Mac won’t charge to 100%" that, if you use optimized battery charging in macOS Big Sur or use macOS Catalina or earlier, occasionally the battery might not show a full charge (100%) in macOS, even after the power adapter has been connected for an extended period of time. This behavior is normal and helps prolong the overall life of the battery. We hope these details help explain this scenario you are having.
Thank you for using Apple Support Communities.
Hi jaffastyle,
We'd like to help share some information regarding this, as this is expected behavior. For an article that is Get help with your Mac notebook battery you will find information under "If your Mac won’t charge to 100%" that, if you use optimized battery charging in macOS Big Sur or use macOS Catalina or earlier, occasionally the battery might not show a full charge (100%) in macOS, even after the power adapter has been connected for an extended period of time. This behavior is normal and helps prolong the overall life of the battery. We hope these details help explain this scenario you are having.
Thank you for using Apple Support Communities.
Hi sterling r,
Thank you very much for replying my question, especially in this manner that I can learn more about battery optimisation.
I have this problem too, I have the exact same macOS but I have the macbook air m1. Did you fix the issue, if yes then how?
Big Sur 11.2.3 - Fully Charged Battery Displays 99%
