MacBook Pro M5 Pro: DarkWake causing overnight battery drain

Has anyone tried switching OFF their logitech mouse and seeing if the battery goes (Even if the mac was never paired with the logitech before)? There might be something in the logitech mice which "may" cause m5 macs to wake up at night and drain battery (again, I am not saying that logi is causing this, i am just trying to eliminate possibilities)

terriermind wrote:

This community is amazing.

What's amazing is the number of truly oddball problems that are ultimately traced back to "Logitech".

That computer is a battery-CAPABLE device, It is not optimized as a battery-operated device (it is not an iPhone.)

Your computer performs best when connected to AC power, such as the power adapter. It can use the full output of the Power Adapter AND when doing especially challenging work could also freely "borrow" power from the battery. In some cases, even with the power adapter connected, the charged state may decline during very stressful work.

When used only on battery, your computer has no extra cushion of power, and may perform more slowly. However, for ordinary non-stressful tasks this may not be objectionable (possibly not even noticeable.)

In general, you should ALWAYS connect a power source when it is possible to do so, and only run on batteries (which could be somewhat slower) when no power sources are at hand. Modern Macs maintain optimum battery charge levels under program control, and will NEVER over-charge. Connected to Power is NOT necessarily charging.

When you set it down in one place, or set it down for the night, Plug it in. Then you won’t CARE whether it would drain the battery.

terriermind wrote:

No, I have not found a solution.

The thing is, I do think it's a small bug issue. I really do. I see people on reddit posting about this same issue as well. Hopefully there will be a cause found, and a patch made. I've heard that macbook pro models have had battery drain issues before in other models that was fixed by a patch.

I think you should consider @steve626's reply which shows several cloud syncing apps & services you are running on your Mac:

https://discussions.apple.com/thread/256265048?answerId=261879557022&sortBy=oldest_first#261879557022

I believe those are most likely the source of the wake events & battery drain. I somehow missed their post yesterday...it was late & the forum was having issues. I think @steve626 has found the source of your multiple wake events & battery drain.

FYI, when you go looking online, you will inevitably find others writing about similar issues, but most times they will have different causes for similar types of symptoms. From assisting here on the Apple forums for years now, I can tell you that most people rarely post enough pertinent details about the issue & their system configuration and many never actually do any real troubleshooting....especially when they come across other online posts mentioning similar symptoms. Many times critical details emerge only after weeks of posts where tiny tidbits are provide to finally reveal the real problem. Take most of what you find online with a grain of salt....don't take it at face value.

Maybe the OP could run a network monitor overnight on the Mac to log which websites are being accessed. I don't know if there is such a product or whether there's a terminal command which does it - maybe someone will be able to confirm whether it's possible and/or a good idea.

zztea wrote:

1. I am experiencing exactly the same issue (M5 Pro with Tahoe 26.5.2). I found the issue when I put the laptop in the sleeve for long time and found it got hot and its battery drained. I did a lot of experiments with the help of gpt, and here are some findings:

It only happens when bluetooth is on. Wifi does not matter.

2. Weirdly, it mostly happens when the laptop is in the office environment. It rarely happens when I am home or in outdoor environments, but if it does happen, it can usually recover soon.

3. It is NOT likely that the issue is related to third party software, including Logi Options+. I can see this issue in both safe boot and normal boot with logi mx master 3/3s connected or not. Also this computer is brand new within the return window, and I haven't installed much stuff.

One thing that I am testing is Turning off "Find my mac". Some preliminary evidence shows that the issue can significantly drop after I turned it off. I still need to do some more ABA tests, and will update soon.

My current theory is that "Find my mac" is constantly sending and receiving signals when there are other apple devices nearby. Based on my understanding, it uses bluetooth mostly to get the data packet. The office environment includes a lot of devices constantly broadcasting data packet, which triggers the insomnia issue.

I am on the fence whether I should make an exchange due to issue. I do worry that this is a hardware issue even though I think it's mostly related to some defects in the firmware.

We have thousands of Mac laptops at my employer's facility. Scores of engineers sit in reviews and meetings with these laptops, all have WiFi and Bluetooth on as well as Find My (mandated by the employer), and they are all in close proximity to one another. No one seems to have problems with battery capacity so I am wondering about your diagnosis.

In my opinion, users who have installed apps or tools that "phone home" or do syncing will experience greater battery drain overnight while that activity continues even during computer sleep. The "cure" is trivial -- just connect the charger overnight.

If you exchange your Mac for a new one and set it up the same way you set up the one you are using now, you will simply recreate the symptoms that you don't like.

flash608 wrote:

No, it's not. Don't you get that I've paid a lot of money for this device and I should be the one in control, not Apple?

Apple controls what is built in the the MacOS. And the software people install may "call home" whether the user likes it or not. Brand new Macs with nothing installed don't do those things.

If you want a new feature to be added, like the Windows one you liked, then use this link: Product Feedback - Apple .

Besides, the problem exists not only when I'm at home, but also on a trip when my Mac is in my backpack where it gets hot.

Most likely that is poorly designed software trying to repeatedly connect to something even when there is no internet connection, thus wasting energy. You can simply shut down the Mac when traveling, it reboots in seconds when restarted.

As was mentioned already Windows laptops act similarly, but they have an option to hibernate whereas Apple wants to manage it by itself.

Product Feedback - Apple

...now corporations are exploiting that against us every where they can.

That's an interesting world view but not sure what it is based on.

If it's not a problem then posts like that would never get made.

I like "problems" that are easy to solve. Connecting to a charger (or just shutting down when the Mac won't be used for a while in a backpack) is an easy solution.

Everyone,

I have discussed this issue in detail with apple senior technicians and paid two visits to the genius bar with the most recent visit being day before yesterday (09/04). They did a firmware reset on my mac to try to solve this issue. This gave me a completely new mac with no previous information in it (pain for me to add back all my old files, but I had to try this troubleshooting step).

I came back and didn't add my logitech mouse (as some people believed that the Logitech mouse caused this). My battery still drained (going from 32% at 3:30am to 14% to 1pm) which is an odd behavior. I will keep the community posted on what's happening here.

Can you try unpair every bluetooth device and check if the problem persists? If yes, you might experience different issue than me. My suggestion is to install chatgpt app and use its "work" function to help you debug.

@zztea, does forgetting the logitech mouse work?

<< what happens when I close it and store it for a week.. will I come back with no power because of the draining while it's sleeping and not plugged in? >>

YES, that is exactly what will happen.

Would you like a list of recent discussions where the author's MacBook Pro was dead dead after a week off power?

When you un-install something, you need to use the software-maker's Un-Install procedure. In this case, the

Executable: /Library/PrivilegedHelperTools/com.crystalidea.macsfancontrol.smcwrite

... was still on your computer in the referenced location.

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I would think from its description that Ulysses was merely a writing app. But Etrecheck shows it as a Share service. That calls into question whether it is frequently reaching out onto the internet for something.