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User profile for user: timon137
timon137 Author
User level: Level 1
4 points

MacBook Air discharge Battery with charger plugged in until doing a full charge

Hello.


I hope you can help me...


I have an M1 MacBook Air (2020) and face the following problem frequently:


I start up my MacBook with a fully charged Battery and the original 30W power adapter plugged in and my MacBook says "power supply via supply unit" but it's still discharging the battery! After the current charged dropped under 100% it additionally says "charging process halted. Rarely used with battery" and just if I click "Full Charge Now" at the top the battery begins to charge and everything seems to be normal for a few days until I face the same problem again.


Do you have an idea how to fix this?


My battery capacity is at 94% by the way...


Thank you very much!

MacBook Air von Timon

Posted on Jul 30, 2023 4:23 AM

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User profile for user: PRP_53
PRP_53
User level: Level 10
92,473 points

Posted on Jul 30, 2023 4:53 AM

Batteries are considered Consumable Products.


Over time it will degrade to a point where it needs to be replaced.


The usage is normal as the capacity will go up and down all the time and never stay always at 100%. Apple Batteries are rated for 1000 Full Battery Cycles and / or 80% Capacity before needing Evaluation or replacement.


For additional reading on Battery and Apple Computers this link may help. About battery health management in Mac notebooks and especially for the M1 / M2 and Big Sur  & Monterey  and Ventura If battery charging is paused or on hold on your Mac


Depending on the Age of the computer, some aspects from the above links, may or may not apply to your computer.


A feature introduced into Big Sur & Monterey and Ventura was to preserve the number of Full Battery Cycles - there was an Algorithm coded into the macOS.


It is perfectly Normal for Big Sur , Monterey, Ventura to Pause / Suspend charging the battery beyond 80% and hold it at that level.


One can nudge / over-ride this by clicking the Battery Icon on Desktop Top Bar and allow charging beyond 80%. From observations, it will Pause / Suspend again once reading 90%.


Same procedure to over-ride and will charge to 100%


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Question marked as Top-ranking reply
User profile for user: PRP_53
PRP_53
User level: Level 10
92,473 points

Jul 30, 2023 4:53 AM in response to timon137

Batteries are considered Consumable Products.


Over time it will degrade to a point where it needs to be replaced.


The usage is normal as the capacity will go up and down all the time and never stay always at 100%. Apple Batteries are rated for 1000 Full Battery Cycles and / or 80% Capacity before needing Evaluation or replacement.


For additional reading on Battery and Apple Computers this link may help. About battery health management in Mac notebooks and especially for the M1 / M2 and Big Sur  & Monterey  and Ventura If battery charging is paused or on hold on your Mac


Depending on the Age of the computer, some aspects from the above links, may or may not apply to your computer.


A feature introduced into Big Sur & Monterey and Ventura was to preserve the number of Full Battery Cycles - there was an Algorithm coded into the macOS.


It is perfectly Normal for Big Sur , Monterey, Ventura to Pause / Suspend charging the battery beyond 80% and hold it at that level.


One can nudge / over-ride this by clicking the Battery Icon on Desktop Top Bar and allow charging beyond 80%. From observations, it will Pause / Suspend again once reading 90%.


Same procedure to over-ride and will charge to 100%


Reply

MacBook Air discharge Battery with charger plugged in until doing a full charge

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