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Memolomazo

macrumors newbie
Original poster
Dec 27, 2021
21
4
I’ve just completed 30 battery cycles and my MacBook is at 98% of battery life. I’ve been using it just a month and half and this is weird for me.
Is this the regular behavior for a MacBook battery?
 
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Krevnik

macrumors 601
Sep 8, 2003
4,101
1,312
It depends a lot on how you are using it, but the max capacity % after "only" 30 cycles is not a super great indicator. But the general idea is that lithium batteries are good for about 1000 cycles, depending on how much capacity loss you can accept.

In my case, I'm at 34 cycles since getting my 16" on launch day, but I do quite a bit of mixed plugged in or away from dock use. And I can usually go a couple days between charging. Someone doing a full 8 hours every day on battery will wear it down much faster than I will.
 

jdb8167

macrumors 601
Nov 17, 2008
4,859
4,599
I’ve just completed 30 battery cycles and my MacBook is at 98% of battery life. I’ve been using it just a month and half and this is weird for me.
Is this the regular behavior for a MacBook battery?
My M1 MacBook Air was at about 97.8 after 20 cycles or so. Now at just under 50, I’m back to 98.9. It goes up and down with use. I wouldn’t worry about it unless you see a very large change.

BTW this is measured from the actual values seen in the ioreg values, the number from Apple’s battery health just shows 100%.
 

randomdude83

macrumors member
Feb 6, 2022
31
26
I moved up to a 16" m1 max but when i had my m1 13" macbook pro, within 6 month, it went to 87%.

One thing that immediately slowed the degradation down and stayed at 87% for at-least 3 of those month, was not charging it using the included high Wattage cable/adapter but from lower Wattage Thunderbolt accessory like all in one I/O accessory.

Sometimes iphone 20watt adapter (iphone 13 pro max one) and i've even used 5w charger just to put it in clamshell mode which seems to charge it but at very very slow rates)

just my experience.
 
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leman

macrumors Core
Oct 14, 2008
19,521
19,678
Batteries are not exact items, and battery capacity will fluctuate/change in a non-linear way. From. my experience, this is not alarming. I would get worried if your battery drops below 90-95% in the first year, that should not happen.
 
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