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applesed

macrumors 6502a
Jun 25, 2012
533
340
does the max draw more power for cpu-intensive, non-gpu-intensive tasks than the pro too? what about max 32gpu vs. 24 on same type of task?
 

Someirishguy

macrumors 6502
Original poster
Mar 27, 2016
252
211
does the max draw more power for cpu-intensive, non-gpu-intensive tasks than the pro too? what about max 32gpu vs. 24 on same type of task?
Good question. I think, as long as the work isn’t GPU intensive, you would see a similar (~10%) reduction in battery as with light usage. I don’t think anybody’s properly tested 24 vs 32 under any scenario, but I image it would have slightly better battery (an extra few percent).
Is it that you need 64 Gb RAM, but don’t need the GPU? If that’s the case I image your priority would be RAM over battery, and it’s not much extra for the 32 cores. Max out the beast!!
 

agent mac

macrumors member
Oct 9, 2007
94
144
I've had a very different experience with my 16in 32GB Max 1TB. With just browsing in Safari, Mail, Calendar, and using Messages, I got 1 hour 27 min before it started to read 99% with the screen at just under half brightness. With a medium workload in photo pro apps (Capture One, PS) it took 58 min before it reached 99%.
Doesn’t this post illustrate the limitations of this scrutiny. If the machine is telling you you’ve used just 1% of battery life after an hour and a half of X or an hour of Y, then it’s not really giving you useful or reliable information as the logical outcome of that is that your battery can last for a hundred hours!!!
 
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Fomalhaut

macrumors 68000
Oct 6, 2020
1,993
1,724
Doesn’t this post illustrate the limitations of this scrutiny. If the machine is telling you you’ve used just 1% of battery life after an hour and a half of X or an hour of Y, then it’s not really giving you useful or reliable information as the logical outcome of that is that your battery can last for a hundred hours!!!
Agreed. We know that Apple doesn't drop from 100% reported battery life until it's actually somewhat lower (I think I read 95% as reported by Coconut battery).

For this reason, I tend to disregard battery life estimates based on the fully charged machines. It would be more meaningful to see how things progress from a starting point in the range of 50-90%. i.e. I think a "percentage drop per hour" in the middle of the range (10-90%) is a more useful metric.
 

Micka88

macrumors 6502
Dec 25, 2019
345
133
It is really strange (and usual Apple user unfriendly attitude) that the laptop batteries can't be easily changed and replaced. If you are using the battery, in a short time the battery life decreases and you have no possibility just to change it for a new battery as anywhere else. Really weird.
 

vinay427

macrumors 6502a
Sep 18, 2008
748
74
It is really strange (and usual Apple user unfriendly attitude) that the laptop batteries can't be easily changed and replaced. If you are using the battery, in a short time the battery life decreases and you have no possibility just to change it for a new battery as anywhere else. Really weird.

I tend to agree, but to be fair, internal batteries have advantages in battery size and weight efficiency, and Apple's internal battery design in this generation (while not on par with the most repairable laptops today) is still a notable improvement over the last generation according to the iFixit teardown. Few laptops these days have externally removable batteries and many manufacturers (including Apple previously) choose even more restrictive options.
 

Micka88

macrumors 6502
Dec 25, 2019
345
133
I tend to agree, but to be fair, internal batteries have advantages in battery size and weight efficiency, and Apple's internal battery design in this generation (while not on par with the most repairable laptops today) is still a notable improvement over the last generation according to the iFixit teardown. Few laptops these days have externally removable batteries and many manufacturers (including Apple previously) choose even more restrictive options.
So it means if you use the battery, in some not very long time its life will be close to zero and you can't do anything to change it. And you laptop will be of very low value and possibilities of use.
 

vinay427

macrumors 6502a
Sep 18, 2008
748
74
So it means if you use the battery, in some not very long time its life will be close to zero and you can't do anything to change it. And you laptop will be of very low value and possibilities of use.

How did you get that from what I wrote? I said that internal batteries have some advantages, and Apple's design in this generation is more repairable than before. Obviously, it's still much worse than an externally removable battery, but few manufacturers offer that anymore.
 

Micka88

macrumors 6502
Dec 25, 2019
345
133
So it can be basically changed in some way - in an authorised Apple service ? And you pay just for the battery, not for the half of the laptop ?
 

vinay427

macrumors 6502a
Sep 18, 2008
748
74
So it can be basically changed in some way - in an authorised Apple service ? And you pay just for the battery, not for the half of the laptop ?

It's actually better than that if you want to avoid Apple service costs. The batteries can be DIY replaced if you're somewhat skilled, without the need for specialized tools, adhesives, alcohol, etc. which apparently wasn't the case with the last generation.


If you do want Apple to take care of it, they charge $199 in the US, which is high but isn't terribly unreasonable for a (hopefully) one-time repair given the parts and labor.

 
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doublemycoresplz

macrumors member
Nov 7, 2021
41
45
Just wanted to let ya'll know my 24 core GPU 16'' Max w/ 32GB RAM took about an hour to come down to 99%. Given, it's my first time using it, but still seems promising nevertheless. I'm thinking the 32GB to 64GB jump in RAM is a huge hit to battery life because we know from Ampere GPUs that fast memory sucks an insane amount of power. The M1 Max has some of the fastest memory if its kind so 32GB is probably the sweet spot for battery/perf.
 
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Cameraman12

macrumors member
Mar 14, 2009
82
80
Cali
I was able to easily get an entire day of work (morning till night) on a full battery with the 16" MAX 32gb. I always charge at night so for me the battery is something I barely think about now (I used to have to charge my old 2.9ghz i7 at some point during the day.)
 

doublemycoresplz

macrumors member
Nov 7, 2021
41
45
I was able to easily get an entire day of work (morning till night) on a full battery with the 16" MAX 32gb. I always charge at night so for me the battery is something I barely think about now (I used to have to charge my old 2.9ghz i7 at some point during the day.)
Great to hear. Was this on the 32 core GPU?
 

Micka88

macrumors 6502
Dec 25, 2019
345
133
I was able to easily get an entire day of work (morning till night) on a full battery with the 16" MAX 32gb. I always charge at night so for me the battery is something I barely think about now (I used to have to charge my old 2.9ghz i7 at some point during the day.)
Well, do it like for the next 2-3 months and your battery will need lunch before lunch and soon breakfast ;)
 

hoobury

macrumors newbie
Oct 12, 2011
28
64
I did a side by side Netflix and Amazon Stream and posted the results in another thread about this same topic. That thread linked here. That was with the two stock configuration. One M1 Pro with 16gb and one M1 Max with 332GB


It was post #129.

The conclusion was the battery life was nearly identical on that light usage, everyday test. With the screen at a normal level, I'm sure it would have gone 10+ hours. Very sorry but I can't spend 10+ hours replicating the same activity on 2 machines so I thought the continuous stream would be a good way to compare with identical loads.

Regarding the 100%. In general, both machines did not move off 100% for the first 30 minutes. On another day, I got nearly an hour before it moved off 100%. To confirm what everyone knows, that does not translate to a linear decline from there. You do not get 30 minutes of use per 1% of battery. The back half definitely drains faster.

The breakdown of my 7.5 hour test were 4.25 hours for the first 50% of battery meter. So 100% down to 50% lasted 4.5 hours. 50% to 5% only got 3 hours. Bit like toilet paper with the back half of the roll disappearing faster.

As another test I didn't include in the other post.

I started with both machines at 53% battery and streamed ESPN using Safari. After 2.75 hours, The Max had 13% battery left while the Pro only had 10%.

Charged them both up to 100%. After 2 hours, the Max had 87% left while the Pro had 84%.

Couple of callouts there.
1. I'd call that close enough but if anything, the Max was slightly better. This is only one usage scenario (albeit one that will be replicated frequently by many of us - binge watching Netflix!). I don't know if Netflix streaming is GPU intensive enough and that's why the the Max did better in this test. Just so everyone knows my bias, I'll be using the Pro going forward so I certainly would prefer the Pro were the resounding battery winner.

2. From 53% down to 13% is roughly 40%. Machines lasted 2.75 hours. From 100% to 87%/84%, lets just round it to 15%. So 15% of battery drain lasted 2 hours. If you double that to 30%, you'd get 4 hours. Just further confirmation that starting from 100% is deceptive.

Someone asked about the Intel i9. I noted this in the other post but will repeat here. In my stream test that these M1 machines lasted 7.5 hours, the 2019 Intel only lasted 2.75 hours.

Regardless of which machine you pick, the Max or the Pro, they both have extraordinary battery life for everyday use.
 

applesed

macrumors 6502a
Jun 25, 2012
533
340
I did a side by side Netflix and Amazon Stream and posted the results in another thread about this same topic. That thread linked here. That was with the two stock configuration. One M1 Pro with 16gb and one M1 Max with 332GB


It was post #129.

The conclusion was the battery life was nearly identical on that light usage, everyday test. With the screen at a normal level, I'm sure it would have gone 10+ hours. Very sorry but I can't spend 10+ hours replicating the same activity on 2 machines so I thought the continuous stream would be a good way to compare with identical loads.

Regarding the 100%. In general, both machines did not move off 100% for the first 30 minutes. On another day, I got nearly an hour before it moved off 100%. To confirm what everyone knows, that does not translate to a linear decline from there. You do not get 30 minutes of use per 1% of battery. The back half definitely drains faster.

The breakdown of my 7.5 hour test were 4.25 hours for the first 50% of battery meter. So 100% down to 50% lasted 4.5 hours. 50% to 5% only got 3 hours. Bit like toilet paper with the back half of the roll disappearing faster.

As another test I didn't include in the other post.

I started with both machines at 53% battery and streamed ESPN using Safari. After 2.75 hours, The Max had 13% battery left while the Pro only had 10%.

Charged them both up to 100%. After 2 hours, the Max had 87% left while the Pro had 84%.

Couple of callouts there.
1. I'd call that close enough but if anything, the Max was slightly better. This is only one usage scenario (albeit one that will be replicated frequently by many of us - binge watching Netflix!). I don't know if Netflix streaming is GPU intensive enough and that's why the the Max did better in this test. Just so everyone knows my bias, I'll be using the Pro going forward so I certainly would prefer the Pro were the resounding battery winner.

2. From 53% down to 13% is roughly 40%. Machines lasted 2.75 hours. From 100% to 87%/84%, lets just round it to 15%. So 15% of battery drain lasted 2 hours. If you double that to 30%, you'd get 4 hours. Just further confirmation that starting from 100% is deceptive.

Someone asked about the Intel i9. I noted this in the other post but will repeat here. In my stream test that these M1 machines lasted 7.5 hours, the 2019 Intel only lasted 2.75 hours.

Regardless of which machine you pick, the Max or the Pro, they both have extraordinary battery life for everyday use.

Did you compare how hot they get including bottom during these tests?

Only info so far on temp for high gpu processes not CPU intensive or light load. ( and max was +12F during high gpu.)

Honestly don’t understand the off power high gpu load tests, because a) even the pro max duration is crazy compared to previous b) are you really going to do a ton of graphics work away from power?
 

hoobury

macrumors newbie
Oct 12, 2011
28
64
Did you compare how hot they get including bottom during these tests?

Only info so far on temp for high gpu processes not CPU intensive or light load. ( and max was +12F during high gpu.)

Honestly don’t understand the off power high gpu load tests, because a) even the pro max duration is crazy compared to previous b) are you really going to do a ton of graphics work away from power?
I agree completely on the heavy graphics away from a power outlet. I don't want to question anyone's workflow but I would think most people would be at a desk (even if offsite). I mean heck, my primary need before for extended power was international flights. But most seats have power now.

I did not do any measurements of temp but did pick check the bottom occasionally. I would describe both as slightly warm. But as noted in my other post, nothing close to the fan coming on. Which is very different than my 2019 Intel b/c that fan would regularly kick on for little to no reason and then I'd just watch the battery percentage drop. Definitely not an issue on these machines.

Overall very pleased with the battery. Been on the M1 Pro most of this morning for 2 hours doing various things and am currently at 85% left.
 
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applesed

macrumors 6502a
Jun 25, 2012
533
340
I agree completely on the heavy graphics away from a power outlet. I don't want to question anyone's workflow but I would think most people would be at a desk (even if offsite). I mean heck, my primary need before for extended power was international flights. But most seats have power now.

I did not do any measurements of temp but did pick check the bottom occasionally. I would describe both as slightly warm. But as noted in my other post, nothing close to the fan coming on. Which is very different than my 2019 Intel b/c that fan would regularly kick on for little to no reason and then I'd just watch the battery percentage drop. Definitely not an issue on these machines.

Overall very pleased with the battery. Been on the M1 Pro most of this morning for 2 hours doing various things and am currently at 85% left.
Thanks for that. Sounds like one was not noticeably warmer than the other during the tests.
 

Micka88

macrumors 6502
Dec 25, 2019
345
133
I still had 53% battery by the end of the day so maybe like 2-3 years :)
Well, I have Macbook Air M1 for 9 months. I use it on the move and battery often. Now - battery condition marked as "poor" and battery life maybe 40% of the first days ...
 

Sanpete

macrumors 68040
Nov 17, 2016
3,695
1,665
Utah
Well, I have Macbook Air M1 for 9 months. I use it on the move and battery often. Now - battery condition marked as "poor" and battery life maybe 40% of the first days ...
As I understand it, Apple will replace it in that case.
 

felrobert

macrumors newbie
Mar 26, 2021
29
7
Bay Area
Has anybody tested whether the M1 Max impacts battery life under normal casual usage, versus the M1 Pro. Essentially, I want to know if the extra GPU cores in the M1 Max drain battery even if they’re “not being used”? I would expect the battery to drain quicker when, for example, exporting video, but it would also export faster, so that would be expected and acceptable.
I have the M1 Pro 10-16core 1TB and the battery life is terrible, only getting 1hr or less playing Transport Fever 2.
 

archi penko

macrumors regular
Nov 6, 2007
174
210
I
I have the M1 Pro 10-16core 1TB and the battery life is terrible, only getting 1hr or less playing Transport Fever 2.
i think with games, it really depends which games/title one plays. Battery is going to vary a lot.
 

Samuelsan2001

macrumors 604
Oct 24, 2013
7,729
2,153
Well, I have Macbook Air M1 for 9 months. I use it on the move and battery often. Now - battery condition marked as "poor" and battery life maybe 40% of the first days ...
If I remember correctly apple will replace a battery with less than 80% capacity if it has less than 1000 charge cycles and/ or is less than 3 years old. Of course I just think you are a troll but that’s ok this info may be useful for someone.
 
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