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tim1000

macrumors 6502
Sep 16, 2014
441
115
why do they allow access to the information then? I was thinking about replacing my 2021 MacBook Pro 16 inch due to all the comments on here that suggest it would be somewhere near 100% battery health. some use fancy apps that control the charging.
 

Isamilis

macrumors 68020
Apr 3, 2012
2,191
1,074
With constant charging and discharging, you can run through those 1000 cycles within 3 years.
Cycle didnā€™t count every time charge/discharge. I have 2 rMBP 2014 which still have 80% battery health with around 500 cycles (still using original battery). My first MacBook in 2009 which I put constantly plugged. In 12 months, it only has < 200 cycles, but battery health was dropped to 79% (expensive lesson learned).
As also mentioned by some readers here, if you have Apple service center around, you can just ignore the battery and replace it when itā€™s been below 80%. Even though there are some principles, but battery maintenance doesnā€™t guarantee good battery condition due to there is ā€œluckyā€ factor from manufacture variation as well as other factors like heat, charger wattage, charger cable, software, etc which are not always under our control.
 

Gudi

Suspended
May 3, 2013
4,590
3,267
Berlin, Berlin
Cycle didnā€™t count every time charge/discharge.
One cycle equals 100% of the battery capacity discharged and recharged again. So if you use 30% of your battery today (and reload), 50% tomorrow (and reload) and 20% the day after (and reload), then you've completed one full load cycle. If on average every Lithium-ion in your battery had to do its job once, that's one load cycle. How often you plug and unplug MagSafe during that time doesn't matter.
 
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Hammie

macrumors 68000
Mar 17, 2009
1,550
74
Wash, DC Metro
This is very interesting about the new 14" MBP.

I have three MacBook Pro's. Based on Battery Health 3, these are the statuses of them.

2010 17" MBP 2.66GHz i7 (MacOS High Sierra 10.13.6)
-- 631 cycles, 38% health, Status = Service Battery

2013 13" MBP 2.4GHz i5 (MacOS Big Sur 11.7.2)
-- 295 cycles, 86% health, Status = Good

2021 14" MBP M1 Pro (MacOS Ventura 13.2)
-- 79 cycles, 85% health, Status = Good
 
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shadyman

macrumors regular
Jun 9, 2015
233
214
Can you guys please start a class action? Unfortunately, my country does not offer these types of legal actions against companies.

The battery has definitely deteriorated after such a short time!
 
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sxlx

macrumors newbie
Feb 11, 2023
20
8
Screenshot 2023-02-12 at 12.04.52 AM.png


I am gratified by this accomplishment.
 

scouser75

macrumors 68030
Oct 7, 2008
2,951
619
I'm new to MacBook Pro's as have always had a desk top.

What is best practice in regard to charging these?

* Do I allow the battery to go down to around 20% and then do a full charge to 100%?
*Or Do I not let it go below a certain %?
* Do I keep it plugged in constantly whenever possible?

Any advice welcome please.
 

colonelbutt

macrumors 6502
Nov 14, 2007
381
424
London
I'm new to MacBook Pro's as have always had a desk top.

What is best practice in regard to charging these?

* Do I allow the battery to go down to around 20% and then do a full charge to 100%?
*Or Do I not let it go below a certain %?
* Do I keep it plugged in constantly whenever possible?

Any advice welcome please.
I would only go on EV manufacturers guidelines for LiOn batteries, where they have given a guarantee, for example for my EV VW guarantees 80% after 8 years. The advice is to recharge at 20% or above, and not charge "most of the time" above 80%. I notice that my Samsung Galaxy S22 Ultra has a preserve option now which limits charging above 85%. So I am trying to keep my Mac Pro between 20 and 80, if that helps. Not sure it makes the same difference for a laptop vis-a-vis an EV which has "hundreds of cigar type" small cells, but anyway

In my experience there is always a significant impact of keeping a laptop fully charged most of the time, in terms of battery degradation. I know its difficult and a hassle to run it offline when mostly at your desk.
 

scouser75

macrumors 68030
Oct 7, 2008
2,951
619
Thanks Colonelbutt. So do not let battery go below 20% lowest. And do not charge above 80%. Correct?

I've also just realised something odd. I was on 30% whilst typing this. Put on the charger, and within 5 minutes I've hit 74%. That's not normal, is it?
 

colonelbutt

macrumors 6502
Nov 14, 2007
381
424
London
Thanks Colonelbutt. So do not let battery go below 20% lowest. And do not charge above 80%. Correct?

I've also just realised something odd. I was on 30% whilst typing this. Put on the charger, and within 5 minutes I've hit 74%. That's not normal, is it?
i cant comment on your setup, but what i have noticed is that the supplied charger seems very very fast. would be interested in other folks experience
 
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PauloSera

Suspended
Oct 12, 2022
908
1,393
It promotes this kind of unnecessary paranoia that this thread is filled with. There is absolutely no reason to baby your MBP's battery, or even pay attention to it. It will last the entire life of the machine, and most likely the machine will be traded in or sold well in advance of the battery degradation even becoming noticeable. Just use your machines people. Don't pay any attention to this nonsense.
 

ArkSingularity

macrumors 6502a
Mar 5, 2022
928
1,130
It promotes this kind of unnecessary paranoia that this thread is filled with. There is absolutely no reason to baby your MBP's battery, or even pay attention to it. It will last the entire life of the machine, and most likely the machine will be traded in or sold well in advance of the battery degradation even becoming noticeable. Just use your machines people. Don't pay any attention to this nonsense.
They added most of that after a whole slew of lawsuits following the iPhone throttling situation a few years back. People probably did get a little too paranoid about it, but the extra information is a good for those who plan to keep their devices for a while. The batteries aren't user replaceable, and it's not uncommon for them to fail before the standard 5-7 year time frame.
 

PauloSera

Suspended
Oct 12, 2022
908
1,393
They added most of that after a whole slew of lawsuits following the iPhone throttling situation a few years back. People probably did get a little too paranoid about it, but the extra information is a good for those who plan to keep their devices for a while. The batteries aren't user replaceable, and it's not uncommon for them to fail before the standard 5-7 year time frame.
1. Absolutely positively false.
2. No one should keeping it longer than 5 years anyway. These machines retain a lot of value, and should be taking advantage of that by trading up at the 3-5 year mark.
 

ArkSingularity

macrumors 6502a
Mar 5, 2022
928
1,130
1. Absolutely positively false.
2. No one should keeping it longer than 5 years anyway. These machines retain a lot of value, and should be taking advantage of that by trading up at the 3-5 year mark.
Why throw out perfectly good machines after 3-5 years? I've kept all of mine, one of them is still 10 years old and going strong. No need to send perfectly good machines to the landfill.
 

PauloSera

Suspended
Oct 12, 2022
908
1,393
Why throw out perfectly good machines after 3-5 years? I've kept all of mine, one of them is still 10 years old and going strong. No need to send perfectly good machines to the landfill.
Throw out? WTF are you talking about? Did you even read?

MACS RETAIN A LOT OF VALUE. YOU SHOULD BE TAKING ADVANTAGE OF THAT BY TRADING UP AFTER 3-5 YEARS.

Hopefully you could read it this time.
 

scouser75

macrumors 68030
Oct 7, 2008
2,951
619
1. Absolutely positively false.
2. No one should keeping it longer than 5 years anyway. These machines retain a lot of value, and should be taking advantage of that by trading up at the 3-5 year mark.
Not really. Some people may not be able to afford upgrading so often. I bought my MBP after having my Mac Pro since 2009. I only changed as the OS was no longer being supported.
 
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Honza1

macrumors 6502a
Nov 30, 2013
940
441
US
I'm new to MacBook Pro's as have always had a desk top.

What is best practice in regard to charging these?

* Do I allow the battery to go down to around 20% and then do a full charge to 100%?
*Or Do I not let it go below a certain %?
* Do I keep it plugged in constantly whenever possible?

Any advice welcome please.
Simplest advice is to get application AlDente which controls the battery charge/discharge. It has useful settings for when you are running with system plugged in permanently. Default is similar to "Keep charge around 80%, do not charge more. And every few weeks discharge to 20%, charge to 100% and discharge to 80%". Or something similar. Supposedly this keeps battery in optimum health and system in sync with your battery charge state.
It is similar to what Apple now added as "optimized charging" (In System Settings, Battery, click on the i in circle next to Battery health). Apple system learns first from your use pattern and then applies similar logic. AlDente gives you controls when and how, so it is lot more manual and for control freaks.
 

scouser75

macrumors 68030
Oct 7, 2008
2,951
619
Thanks for the helpful reply Honza. I've noted your recommendation of the app and suggestions for charging.
 
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