I have been really carefull about charging my battery correctly and this **** happens....is this normal?
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97% Battery Capacity after 40 charge cycles
- Thread starter mihighil
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CoconutBattery pulls data from Apple's own internal stats. I got this from another member here on Macrumors - In terminal put these items and you'll get where coconutBattery gets its data:
ioreg -l -w0 | grep AppleRawMaxCapacity
ioreg -l -w0 | grep DesignCapacity | tail -1
Not sure about Maximus Capacity but I expect it does something similar.
Coconut battery is purely based on the calculation of current max capacity as a percentage of designed max capacity. Battery chemistry is complex and Apple has more knowledge of their batteries than coconut does. Apple seems to make an adjustment of max capacity based on other factors than just the current capacity. My M2 MacBook Air was well above 100% for many battery cycles. Now it is at about 92% with about 100 cycles. Apple says it has gone from 100% to 99% during that time. I trust that Apple’s number is reasonably correct.
I believe that Coconut Battery is just reading those same stats and running some crude calculations. The results can differ between the System Profile and Coconut Battery because there can be some lag between the readings. Every time I've had different readings between Coconut Battery and System Profile, it resolved soon thereafter with a reload.
The numbers are noisy. If you look at System Profile regularly, you'll see the battery stats jump around just the same you see it doing in Coconut Battery. Battery life stats are always estimates.
Here's my release day model.. Been using it every day for 8-10h.
I wonder how many other people are skirting the 80% 3 year AppleCare+ line.
I've been using AlDente religiously with my 16' MBP, but I've only had this laptop for a year and it's been bouncing between 96% and 100%. Meanwhile my work laptop, similar age, used a bit more heavily, is around 95%.
The only advantage of these M MBPs is that the battery life is so insane that even at 80% I believe they'd still be really usable.
Do you have AppleCare+? Are you going to try to get a replacement?
That "3%" is well within the margin of error for these estimates. Also 40 cycles isn't exactly nothing.
Just use the Mac as it was intended and get on with your life. Or, I guess, keep spending a ton of time trying to eke every conceivable electron out of your battery and trying to know precisely what percentage of the chemistry is worn out. Up to you ¯\_(ツ)_/¯
I have the same issue here, except I have about 100 more charge cycles. Yours should probably contact Apple about it. I have AppleCare+ here.
Without AppleCare would cost me this much in Canada lol..
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Below 80% Apple makes it around 180€ for the bottom case replacement, that's what I'm going to do.
➜ ~ ioreg -l -w0 | grep DesignCapacity | tail -1
| | | | "DesignCapacity" = 6075
➜ ~ ioreg -l -w0 | grep AppleRawMaxCapacity
| | | | "AppleRawMaxCapacity" = 4916
I think that the system report only updates on OS update interval. I notice that the number changes after, i.e. upgrade Ventura 13 to 13.1. The terminal is providing live data on command. I think technically my 85% is probably really at 82% right now.
I'll wait and see after 13.3 update. lol
If you imagine the battery having a typical lifespan of 500 charge cycles, which is pretty normal for lithium cells, then the health of the battery would on average drop by 1 percentage point for every 5 cycles. Many other factors play a role too, but 97% after 40 cycles sounds perfectly reasonable (especially given the uncertainties in how that number is determined).
Going for the 180€ bottom case replacement very soon.. Just waiting for my work laptop to arrive and I'll run Arch Linux while this one gets fixed up.
I didn't get AppleCare+ at the time because I thought we'd get the M2 or M3 Macs at 3nm quite soon and I wanted to upgrade.
But right now I'm going to hold on with this Mac until the 3nm Pro comes out.
Quick update from my side, contacted Amazon and might be able to send my M1 Pro back. They will give me back my money and I will buy either a 14" or a 16" M2 Pro instead.. win win situation for me.
I have used this M1 Pro heavily every day since I got it, so I'm one of the best persons to give you guys some feedback about M1 Pro vs M2 Pro differences.
I have used this M1 Pro heavily every day since I got it, so I'm one of the best persons to give you guys some feedback about M1 Pro vs M2 Pro differences.
I was under the impression that it was 500 cycles before it drops below 80%. Every 25 cycles should be about 1% in that case.
I've seen Intel Macbooks with 500-1000 cycles before and they still maintained above 85%. Even my iPhone 12 Pro Max purchased on release day that has 94% capacity.
For some reason, the Apple Silicon Macbooks have a much poorer battery health overall.
My M1 MacBook Air is still around 92%. But the M1 Pro that was used every day for more than 8h didn't even last the 2 year mark as a whole.
Thankfully Amazon in the EU respected the 2 year warranty and allows me to send it back. Waiting for my M2 Pro to arrive this week.. I'll keep a close tab on it, using Aldente when connected to the external display and what not.