MacBook Air m1 battery reduced to 98%

I purchased my MacBook Air M1 2 months ago, I have completed 57 charge cycles and my battery health is reduced to 98% even though I have been charging it in the perfect battery cycle between 30%-80%

, never over 80 nor below 30, Why is this happening even after such care of battery.


will letting MacBook always on power with 100% affect battery health even 1% ? I doubt !

MacBook Air 13″, macOS 11.4

Posted on Jun 7, 2021 3:32 AM

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Posted on Jun 7, 2021 7:10 AM

Batteries are considered Consumable Products. Over time it will degrade to a point where it needs to be replaced. In you case - 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 and Big Sur If battery charging is paused or on hold on your Mac

169 replies

Oct 20, 2022 12:54 PM in response to mayank0166

I bought my Macbook air M1 almost 2 month ago. Condition: Brand new. Cycle count reached 21 and my battery percent is now 96%. The first battery drop happened after around two weeks since i bought my mac. And since on, battery keeps dropping. But in usual case, at least 20 cycle should have caused a 1% battery drop only! I basically follow the rules regarding right care of battery, but does not help. Is it normal??

Nov 12, 2022 6:07 PM in response to thilo132

Well, what did you send it in for? They won't do the battery automatically unless they need to remove it to get to something they need to repair OR if it's the battery itself that you sent it in for of course. But yes, if they have to remove the battery to get to another component like the trackpad or remove the logic board they'll replace the battery since it's in the way so to speak and is also glued in (adhesively). You'll see an itemized list of what they did when you pick it up.


My 3 month old M1 Pro 14" 10-core has 22 cycles on it and is at 97% capacity which is kind of concerning. I have Applecare and all that so no big deal but it should be at -3% capacity after only 22 cycles either....hmmmmmm

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MacBook Air m1 battery reduced to 98%

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