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Updated MacBook Pro to macOS Sonoma, now battery drains quickly

I updated my MacBook Pro this morning to macOS Sonoma. Everything was good at first and I really like the look and feel. But as soon as I took it off my charger to go to some meetings the battery dropped from 74% to 44% in about 5 minutes. Then as soon as I turned on WebEx the battery dropped from 44% to 7%.


Anyone else having battery drain issues with macOS Sonoma? Is it maybe just temporary from all the background activity similar to the phones?


[Re-Titled by Moderator]

MacBook Pro (2017 – 2020)

Posted on Sep 27, 2023 12:36 PM

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Question marked as Top-ranking reply

Posted on Oct 31, 2023 6:55 AM

There are too many people complaining about this issue all over the world on many websites. What was mentioned is true about what causes the drain but for us who reinstalled and reinstalled both Ventura and Sonoma, we are not dumb to not know the difference. 20+ hours reading PDFs on Ventura to 6-10 hours on Sonoma doing the same is too significant to ignore. I think it's an insult to our intelligence thinking that many of us do not know what we're talking about when apple techs keep making suggestions about this and that without addressing the issue. the problem is common out there across the internet and a simple google search of "Sonoma battery drain" will show that.

285 replies

Oct 11, 2023 9:03 AM in response to ku4hx

People go on a support page to ask about a problem they are experiencing, in hopes of receiving support with the problem they are experiencing. No one here is saying “everyone has this problem”; they are saying “I have this problem, are other people experiencing this problem, does anyone have ideas as to the causes or solutions?”


Your response is analogous to telling someone that shows up at the hospital with a broken foot that millions of people have feet that are not broken, so they should quit their whining and accept their lot with the broken foot minority.

Oct 18, 2023 5:42 PM in response to AppleAnswerDude

Now past the three week mark and still the same issue, so it's definitely not the "just give it a few days to get through indexing" thing. Things that I have tried that have not had any effect:


  • Restarting right before putting it in standby
  • Deactivating discretionary background processes (e.g. autoupdaters, 1Password helper)
  • Turning off location services


Typical drain is around 30% overnight in standby. Like others, Activity Monitor shows no screen time during that period. App Nap is set to run only when connected to power. Running a 2020 Intel MBA.

Jan 2, 2024 9:32 PM in response to AppleAnswerDude

Updated to macOS Sonoma 14.2.1 few days ago, and I too am experiencing a massive battery drain on my new M3Max 14" Macbook Pro. I think the battery shouldn't be draining this fast with only few applications open. Apple technicians need to review this issue, and a fix patch should be given right away. This may ruin current users' investments in the long run.

Jan 12, 2024 7:22 AM in response to AppleAnswerDude

I have a MacBook Pro from 2020. When I updated to Sonoma my battery started to drain like crazy. If I left the computer on sleeping mode for 4 hours and it shut off because there was no more battery.


I went to Apple and asked them to downgrade my laptop to go back to the latest version of Ventura. Since then, my battery is perfectly fine a I can leave my computer on sleeping mode overnight and it's barely drained.


100% Proof that Sonoma has a serious battery problem. Don't upgrade until they fix it in my opinion.

Feb 28, 2024 1:58 AM in response to AppleAnswerDude

I've been experiencing the same problems. Massive battery drain, fully charged battery before going to bed and then battery completely flat by the morning. What I did notice was that I couldn't open my activity monitor. I undertook an internet search to resolve the activity monitor issue. What I found was information that the PLIST file also called the preference file for the activity file may have been corrupted. I then recreated the PLIST file and since then after 3 nights a fully charged battery is now at 85% which is a great improvement. It worked for me, so may be worth a try. This is what I did to recreate the PLIST file. 1. Open finder and click GO on the top finder menu and then select Go to folder from the dropdown list. 2. Copy and Enter ~/Library/Preferences/com.apple.ActivityMonitor.plist into the search box and hit return. 3. Select the Activity monitor PLIST file and move it to trash. 4. Reboot your Mac and then reopen activity monitor and let the PLIST file be recreated automatically. Also, let me clarify that previous to this fix, my problem with the activity monitor was not consistent. Sometimes it would open, but not very often. When it did, it showed several programmes preventing my MacBook sleeping. Since applying this fix, activity monitor opens and there are no programs preventing sleep. Hope this helps

Mar 6, 2024 5:33 PM in response to AppleAnswerDude

Chrome is my prime suspect. Frequently, after signing on to Google or some other random website, the laptop starts heating up and losing battery at a rate of 1-2% per minute, which later becomes faster. Laptop is fully discharged in 15 min or so. However... Is this really Chrome, or is it another evil trick from Apple to make us use Safari? At any rate, Sonoma is garbage!

Dec 15, 2023 11:56 PM in response to hooktrunk

First of all, if you have an electrical socket nearby, plug in the MacBook, before you put it to sleep. Also, have optimised charging mode on. Also,


My MBP is always plugged in, sleeping for ~9-10 hours a day. I rarely use the MBP on battery, but I do sometimes just to check how long the battery will pull. It still does, the battery is quite good. (My MBP is 4 1/2 years old) Time to time, I simply shut it down for the night, when it reaches 100% while in optimised charging. The next day the optimised charging kicks in and within few hours, the battery level falls to 80% and stays there for days.


The macOS takes good care of the charging, especially in optimised charging mode, one doesn't really have to worry.

Oct 11, 2023 7:50 AM in response to kriista

The situation is nothing is perfect.


There are millions of Macs in use worldwide. The number of problems you see here seems to be extensive with "so many" problem posts, but the reality is different.


Given the millions of Macs out there, the number of problems seen here is an infinitesimally small percentage of the whole.

Oct 28, 2023 4:47 PM in response to Aidenfaru

Aidenfaru wrote:

1. Thoughtful inquiry: What do you believe your contributions bring to this ongoing conversation? Numerous individuals have vocally expressed that, under typical circumstances, their devices did not experience overnight battery depletion. However, after transitioning to Sonoma without altering their usage habits, they've noticed a substantial increase in battery drain. Understandably, they're seeking an explanation for this shift. Yet, you consistently interject with comments such as, "It's simply a matter of poor usage... if background apps are left unchecked, the battery will inevitably deplete, irrespective of the operating system." What these individuals are emphasizing is that this was not the case with the previous OS.

You are also overlooking the fact that maybe, just maybe, one or more of your third party apps is not behaving properly with macOS Sonoma. Very few people in this thread have actually mentioned doing anything to eliminate this possibility by uninstalling third party apps. Some developers of third party apps may take weeks or even months, or even longer before they make their apps fully compatible with a new major OS release.


I'm not saying that macOS is not at fault, only I haven't seen too many people go through all the work necessary to prove it. Just going back to Ventura is not enough since a third party app may be incompatible with Sonoma. All going back to Ventura proves is the third party app doesn't have a problem with Ventura.



Furthermore, as you mentioned earlier, your battery usage is approximately 6 to 7 hours, which, for M1 or M2 users like us, is subpar. on ventura, we were accustomed to enjoying an average battery life of at least 12 hours.

Many times I don't even get 6 hours battery life even on my Big Sur M1 MBPro. In fact my battery charge dropped over 10% in less than an hour while just shopping online, checking my email, and viewing these forums. Is macOS at fault here?


I support thousands of laptops for my organization and I can tell you from personal experience things are not always what they seem and it is difficult to properly troubleshoot issues. I see threads like this on this forum and I see so many people without a clue on how to properly troubleshoot their computer issues. So many people don't want to do the work necessary to attempt to figure it out and just want to jump on the blame bandwagon without proving that a default clean install of macOS without any third party apps installed and without restoring from a backup still has the same battery draining issues. Like I mentioned in another post, I was helping a co-worker who is an IT tech to look for a battery drain issue and it was difficult to identify...took me a while to identify an issue. I'm a tech with over 20 years experience supporting computers and was assisting another tech who should be able to figure out the problem. Guess what? It was not macOS, but some setting and configuration issue involving iCloud and their photos. Even a clean install of macOS may still have resulted in the same issue. I guess it could be considered the fault of macOS. But the real moral of the story is it was not easy to figure it out.


But very few people here are actually trying any of the suggestions both @chdsl, myself & perhaps a couple of others presented. All I see is a lot of blame on Apple without showing anyone doing more than reverting to Ventura & assuming it proves Sonoma is at fault. I believe I did read where one user actually did some work and discovered a third party app was at fault....congratulations to that user actually taking the time to do the hard work. Now I'm not saying you are wrong, I just haven't seen enough proof in this thread to make that assessment. This is from a person with over 20 years of experience. And no, I am not defending Apple here, I am defending traditional troubleshooting practices and not jumping to conclusions and the blame bandwagon without doing due diligence.

Apr 13, 2024 4:59 AM in response to AppleAnswerDude

I am in the same position, my battery lasts under 2 hours from full charge since upgrading to Sonoma. Also every icon on the desktop has numbers keep flashing up with is simply annoying! Once the battery gets to under 10% everything goes onto a 'go slow' and often won't even finishing sending an email but no alter is given that it's not gone through. Just all very annoying and simply unnecessary. These devices are not cheap as we all know, and agree why treat us like idiots? That's just rude on too many levels.

Apple sort yourselves out and correct these issues out of respect of people making you your millions.

Sep 28, 2023 5:57 AM in response to AppleAnswerDude

One significant contributor to MacBook battery drain after updating to Sonoma or any other new OS is the background setup processes. These background activities like Spotlight reindexing, Photos synchronization, Time Machine backup operations, emails, messages and other app updates.When your MacBook is working on these tasks, it puts an additional burden on both the CPU and GPU, leading to increased power usage and battery drainage. Generally this battery drain is temporary. The best thing to do is to monitor your battery situation and, if active, connect your Mac to a power adapter, allowing them to complete without interruption. This shouldn’t last longer than a couple of days at most.

Updated MacBook Pro to macOS Sonoma, now battery drains quickly

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