Level 2

237 points

macOS Big Sur 11.3 Battery Drain

Hi All,

This morning I downloaded macOS 11.3 and then immediately noticed severe battery drain. Has anyone else experienced this?

My battery went from 100% to 6% in a little over an hour, the fans were blazing fast and the machine got a little warm. I have an early 2020, Intel 4 TB port MacBook Pro with 16 GBs of RAM and a 1 TB SSD.

Specifically yesterday (macOS 11.2.3), I had about 20 or more tabs open in safari, a few Xcode projects, notes, mail, messages and more open and the battery went down to 60% after almost 5 hours.

I just used zoom today for an hour (as I do everyday) when the battery started skydiving (right after the update) and I seriously want to know if anyone has an idea what on earth is happening.

MacBook unplugged at 9:40, Screenshots at 11:18

MacBook Pro (2020 and later)

Posted on Apr 27, 2021 8:25 AM

Top-ranking reply

keithfromchedworth

Level 1

4 points

Posted on May 14, 2021 6:27 AM

I think for me I have found the issue:

I use Sophos Home Premium and on their support site I found following message: Mac user seeing High CPU usage caused by SophosPrivacyGuard? We are investigating. You can turn off this protection as a workaround. See: this article

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41 replies

Owl-53

Level 10

102,553 points

May 3, 2021 10:52 AM in response to FeenstraK

Have you tried Turning WIFI OFF before going to bed ? Experiment and Test.

May 3, 2021 12:03 PM in response to Owl-53

I have not tried that.

gwcuan

Level 1

4 points

May 7, 2021 5:50 PM in response to Percival876

I have the MBA M1 2020 and my battery drained from 61% to 52% in 7 hours on sleep mode. I already tried putting my laptop on safe mode then back to regular mode and still no fix.

CPuller

Level 1

12 points

May 10, 2021 4:51 PM in response to FeenstraK

Thx. Good to know. I've been dealing with it for over a week now with no improvement.

May 13, 2021 9:21 AM in response to AgrlPritam

Same here. No obvious battery issues or apps using significant but runtime now around 4-5 hours down from 11

running M1 Air 16gig and 11.3.1

Rayced

Level 1

29 points

May 13, 2021 4:37 PM in response to Percival876

Do you do your Time machine backups on a NAS/disk connected to an AirPort Extreme base, or Time Capsule?

May 14, 2021 12:03 AM in response to Rayced

No - Time Machine backup through just standard external USB drive

May 14, 2021 1:44 AM in response to FeenstraK

Could you elaborate on the "cataloging thing" you were mentioning? What is that and how was that the issue with the battery drain? Thanks!

MrJack13

Level 1

4 points

May 25, 2021 5:13 AM in response to Rayced

No, i made this for MBP on Intel CPU.

May 26, 2021 11:11 PM in response to Percival876

I am also having the same issue. Something has gone wrong with this update. I'm on 11.3.1.

May 4, 2021 5:30 PM in response to hidhayathul

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macOS Big Sur 11.3 Battery Drain