Unexpected Shotdowns and long battery charge in Mac

Hey!

does anyone else is experiencing longer battery charges after installing macOS Sequoia 15.6?


Also, I have just experienced an unexpected shutdown while ai was using it.

MacBook Air 13″, macOS 15.6

Posted on Aug 19, 2025 01:29 PM

Reply
1 reply

Aug 19, 2025 03:59 PM in response to Dan_Gg

Dan_Gg wrote:

Hey!
does anyone else is experiencing longer battery charges after installing macOS Sequoia 15.6?

Also, I have just experienced an unexpected shutdown while ai was using it.


Have you shut down and restarted more than once since "installing macOS Sequoia 15.6" (?)



You can unplug all cables, remove power to the charger itself for 60 sec and plug it all back in to reset the circuits.

(ie Unplug the power adapter from the wall, wait 60 seconds, then plug the adapter back in.)



A SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies

Login and test. Reboot as normal and test. Caches get rebuilt automatically.




The rule of thumb—if you are near the mains leave it plugged in, if you need the portability then run on the battery only—this is how you help optimize your battery charging and extend the working life of your battery by reducing the cycle count.


About BHM battery health management/ Optimized charging M1/M2/M3/M4 SoC

About battery health management in Mac notebooks - Apple Support


Unexpected Shotdowns and long battery charge in Mac

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