M1 MBP Battery Health

[seb2195]

I’m on 55 cycles with 94% health :/

I'm on 52 with 93%, worried about the longevity of it here as this Mac is only 6 months old...

 

[kevcube]

Then what is the best way to use it? Optimising Battery is always on.
And i never shut down MBP.
I have discussed with a youtuber Aaron, Attaching the screenshot
Please guide me what to do after 100% charge how to use it?

For maximum battery health, even when plugged in your battery will discharge and recharge slightly. It’s not good for a battery to be stuck at a constant 100% full.

So after a year of using it, your battery has done this a few times and you’ve lost 1%. I’d stop worrying about it at this point. My m1 mbp is at like 84% health and still performs great.

 

[jezbd1997]

So after a year of using it, your battery has done this a few times and you’ve lost 1%. I’d stop worrying about it at this point. My m1 mbp is at like 84% health and still performs great.

that’s not something to brag about, my 5 year old macbook air with over 600 cycles is around the same. you are doing something wrong for sure.
when you drop below 80% it will start to discharge rapidly

 

[eilavid]

This is my base MBP M1 (16 GB). I noticed my battery health was dropping rapidly even after only one month. Since my MacBook is connected to a dock for about half the time it's in use, I bought AlDente Pro in october. I've set the charging limit to 80%, and allow it to "sail" to 60%. Health% has been stable ever since.

 

[Brandon42]

I'm jealous of 99%...I'm either at 87% or 83% depending on how you ask.
View attachment 2024602
This is dropping much faster than anticipated and I wonder if I'll hit a threshold where it can still be replaced via warranty (AppleCare+) or if I'll juuuuust miss it and be on the hook for the full cost.

I believe you can also renew your AppleCare+ on an annual basis. Might be worth considering if you are just over the threshold at the end of your AppleCare term.

 

[nvmls]

View attachment 2024693

This is my base MBP M1 (16 GB). I noticed my battery health was dropping rapidly even after only one month. Since my MacBook is connected to a dock for about half the time it's in use, I bought AlDente Pro in october. I've set the charging limit to 80%, and allow it to "sail" to 60%. Health% has been stable ever since.

Interesting, where do you find that data? Thanks in advance.

 

[MallardDuck]

Yes the Apple Optimised Battery Charging should be enough, as your YouTuber says. But the problem is that it doesn't work for everyone.

There are two modes OBC is supposed to work:

1. If you have a regular daily routine, it learns when you want to take it off charge in the morning. It charges up to 80% and holds to there, and does the final increase to 100% charge shortly before you want to start using it. Thus reducing time it sits at 100% charge to just the last hour or so, instead of most of the night.

2. If you mostly leave your MacBook plugged in 24/7 it recognises this and holds it at 80% all the time. People for whom this works report that it can take a month or so for the behaviour to be recognised and the 80% be applied.

I use my MacBooks mostly plugged in all the time and I have never seen it held at 80% even after two months. Many other people also do not see the 80% hold, but many do. You will have to try it for a month or so to see if you are one of the lucky ones.

Because of this I and many others use the third party app AlDente to control max charge, on both my M1MBAs, and I am very happy with it. I admit I have not tried Apple Optimised Battery charging for over a year now, so it may have improved, but I like the extra control of AlDente so would probably stay with it anyway. My November 2020 Mac is at 99% Apple health, and my early 2021 Mac is at 100% health. (Apple health number is not the same parameter as third party app health values).

Search on AlDente will find many threads like this.

Thanks for the pointer. Took two work trips in two weeks and now it's charged to 100% every day since. AlDente it is!

 

[Apple_Robert]

My M1 MBA purchased 12/24/20

Health Information:

Cycle Count: 30

Condition: Normal

Maximum Capacity: 100%

 

[Trixs]

Lol, 99%.. Mine's at 82 after 300 cycles.

 

[Mike Boreham]

Interesting, where do you find that data? Thanks in advance.

That is from third party app Coconut Battery. It is the "ioreg" value extracted from the logs as "AppleRawMaxCapacity" with the Terminal command

ioreg -w 0 -f -r -c AppleSmartBattery

It is used by all the third party apps like Coconut, Battery Monitor and Better Battery 2 (which I use).

On my mac "ioreg" is currently 4101 mAh which is 93.6% of the Design capacity of 4382 mAh, as this composite screenshot (Terminal left, BB2 right) shows:

It is not the same as the value reported by Apple in Sys Pref > Battery > Battery Health, which is currently 99% on this mac. Apple will only consider replacing your battery when their number drops below 80%, not when the ioreg value does.

Note the "ioreg" value can go up and down, as this screenshot of Better Battery 2 from my machine shows:

 

[eilavid]

Interesting, where do you find that data? Thanks in advance.

coconutbattery app

 

[kevcube]

that’s not something to brag about, my 5 year old macbook air with over 600 cycles is around the same. you are doing something wrong for sure.
when you drop below 80% it will start to discharge rapidly

yeah, I was doing some rosetta compatibility work shortly after release and didn't notice but my cpu was at 100% utilization for like all night long, there have been other development events like that as well. not bragging, but... if it ever gets to be a big deal, I'll spend the ~$100 and change the battery. battery condition isn't really something I worry about except on much smaller devices like watch/AirPods.

edit: just checked, 212 cycles and coconut battery tells me 85.1% capacity, macOS tells me 87%

 

[Mike Boreham]

yeah, I was doing some rosetta compatibility work shortly after release and didn't notice but my cpu was at 100% utilization for like all night long, there have been other development events like that as well. not bragging, but... if it ever gets to be a big deal, I'll spend the ~$100 and change the battery. battery condition isn't really something I worry about except on much smaller devices like watch/AirPods.

edit: just checked, 212 cycles and coconut battery tells me 85.1% capacity, macOS tells me 87%

Are you saying that a few events of prolonged 100% CPU caused permanent battery degradation? I don't think that is correct. FWIW I frequently run my MBAs at 100% analysing chess games with Stockfish, and still at 99% after 19 months.

 

[amitabhbansal]

Installed AlDente and set up the charge limit to 50%, now what to do?
Let me tell you how i use this M1 MBP
It always stays on (never shut down), after work like documentation, mails, or watching movies i juts close the lid and put it in bag. as i need to do some work i took it out from bag and start working, and then again it goes directly to my bag, now as i have installed AlDente with 50% charge limit, how should i use it? if the battery goes to 20% i will start charging it and as AlDente stopped the charging to 50% should i keep it plugged in or not?
after i done with my work i have to remove the charger and put it back in bag, and when i need to do work again do i have to plug in again or not?

 

[Mike Boreham]

Installed AlDente and set up the charge limit to 50%, now what to do?
Let me tell you how i use this M1 MBP
It always stays on (never shut down), after work like documentation, mails, or watching movies i juts close the lid and put it in bag. as i need to do some work i took it out from bag and start working, and then again it goes directly to my bag, now as i have installed AlDente with 50% charge limit, how should i use it? if the battery goes to 20% i will start charging it and as AlDente stopped the charging to 50% should i keep it plugged in or not?
after i done with my work i have to remove the charger and put it back in bag, and when i need to do work again do i have to plug in again or not?

I suggest you just use it as if you didn't have AlDente installed. Then all AlDente will do is stop charging at 50% instead of going up to 100%. You may need to experiment with the settings to suit your usage which is quite different from mine.

 

[MrGunny94]

My built in Mac estimate of my battery health says 98% but Coconut battery says 92%. Any idea why such a big discrepancy?

No idea mine says 98% on Apple Health

 

[izzy0242mr]

No idea mine says 98% on Apple Health

And what does it say on Coconut Battery?

 

[amitabhbansal]

Coconut Battery shows 94.5% of my macbook pro M1 whereas Apple Battery Health shows 99%

 

[MrGunny94]

And what does it say on Coconut Battery?

97.8%...

 

[aevan]

80%, I read a lot about it and that seemed the best percentage, low enough to help the battery but high enough so in case of needing to run on battery you can do it for 8-9 hours at least.

Agreed. I'm thinking the same - thanks.

 

[aevan]

Thanks brother, i have downloaded it and installed, set the charge level to 50%. Is it right?

Anything from 60-80 is fine, you don't need to go as low as 50%.

 

[izzy0242mr]

View attachment 2024877

97.8%...

Weird. Wonder why it's so similar between readings on yours but there's a big discrepancy on mine.

 

[Kazgarth]

Here is my 13" M1 MBP

For first 100 cycles it lost battery capacity very rapidly.

However once it reached 82-83% it stopped ageing.

It's been almost over 7 months and 120 cycles with the battery health percentage is still stuck between 82-83%

 

[jav6454]

View attachment 2024877

97.8%...

Dang, you have taken a 3% hit.

 

[jezbd1997]

Here is my 13" M1 MBP

For first 100 cycles it lost battery capacity very rapidly.

However once it reached 82-83% it stopped ageing.

It's been almost over 7 months and 120 cycles with the battery health percentage is still stuck between 82-83%

what kind of usage? i hope not plugged in a lot. otherwise you should take it to apple they might swap your battery out