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MoeOz

macrumors member
Original poster
Is it okay ? possible ? , i did 10.5.5 everything is okay unless the battery health went 15% down , so i will try to do the combo update maybe that could help .
 
It is possible and OK, I have done this quite a few times over the years and it has sorted out problems.

You could also try reseting your PRAM (cmd+option+p+r on boot) or SMU
 
You could also try recalibrating your battery by letting it drain down to 0%, then letting it charge back up to full.
Helps keep the indicator inline with the actual remaining charge of the battery.
 
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