Macbook Pro battery drain whilst sleeping

Question

Level 1

8 points

Macbook Pro battery drain whilst sleeping

Hello,

I've noticed over the past few days that my Macbook Pro 2019 battery has been draining whilst it is in sleep mode.

I can see that this is the case via the usage in battery settings. It also says that the screen is on for 20 mins every hour whilst in sleep mode. I've also checked activity monitor but there doesn't seem to be any applications that are using the battery according to this monitor.

I was wondering if anyone could point me in the right direction regarding this as I am out of ideas. I assume that it has something to do with the screen being on whilst supposedly sleeping.

I have recently updated to Monterey 12.2, but not sure if this is the cause.

MacBook Pro 16″, macOS 12.2

Posted on Feb 1, 2022 9:28 AM

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Answer 1

Maambaa

Level 1

8 points

Feb 22, 2022 8:03 PM in response to chrismid259

I was having this issue on my 2015 mbp. I used to get around 20% battery drain over night while sleeping. One night I signed out of my iMessage and now I get 5% or less drain. It sucks being signed out but whatever I guess

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Answer 2

chrismid259 Author

Level 1

8 points

Feb 27, 2022 2:37 PM in response to chrismid259

Hello. I updated to Monterey 12.2.1 earlier this week and not having this issue anymore. I assume that this has been fixed via the software update. Many thanks for all.

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Answer 3

MVegas21

Community Specialist

Feb 2, 2022 8:33 AM in response to chrismid259

Welcome to the Apple Support Communities, chrismid259.

We understand that you've noticed battery drain while your MacBook Pro is in sleep mode. Let's see how we can help. Does your MacBook Pro support Power Nap? If so, do you have the feature enabled? You can check by going to Settings > System Preferences > Battery. When Power Nap is enabled it lets your computer stay up to date while in sleep mode and using battery power. It allows your Mac to check for new messages in Mail, updates Calendar events, and updates other iCloud events, which could cause some battery usage while in sleep mode. Learn more here: Turn Power Nap on or off on Mac.

If that doesn't seem to be the cause, reply to this message.

Best regards.

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Answer 4

Feb 3, 2022 11:48 AM in response to chrismid259

Many of us are experiencing this issue. The consensus is that turning off BlueTooth when putting your MBP to sleep is the best temporary remedy, though certainly far from a fix. Frustrating.

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Answer 5

Feb 9, 2022 6:35 AM in response to chrismid259

chrismid259, you can try checking Screen Time, open System Preference, then click Screen Time. You will be able to view what app/s are causing your screen to turn on even while on Sleep.

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Answer 6

MVegas21

Community Specialist

Feb 9, 2022 6:26 AM in response to chrismid259

Thanks for the update, chrismid259.

The best step from here would be to reach out to Apple Support so they can look into this further. They can be contacted here: Get Support, or by calling the most applicable phone number from this list: Contact Apple for support and service.

Take care.

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Answer 7

chrismid259 Author

Level 1

8 points

Feb 5, 2022 2:15 PM in response to MVegas21

Hello.

I turned power nap off and left my MacBook in sleep mode overnight, by this morning the battery was at 0%. I would also add that I think this has only become an issue since updating to 12.2 - I wonder if something in the new update is causing this problem?

I also checked activity monitor, but this only shows the past 12 hours. By the time I had turned on the MacBook to check the battery level 12 hours have already so I can't get an accurate idea of what is using the battery. This is how I understand activity monitor to work. If I'm incorrect then I'm sure someone will correct me.

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Answer 8

chrismid259 Author

Level 1

8 points

Feb 3, 2022 7:54 AM in response to MVegas21

Thank you for replying. I did have power nap enabled but have not yet tried a test to see if the issue persists. I will post here again with my findings.

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