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DutchBilly

macrumors newbie
Original poster
Oct 25, 2019
4
0
The Netherlands
Hi there,

Last month I have updated my macbook pro 2018 with the Catalina software update.
Ever since it tends to drain my battery pretty hard, especially overnight.
Last night for example, I closed my macbook @99% and 9 hours later it only has 52% left.
Somehow it's doing something during the night that is taking up a lot of battery.

I've been in contact with apple support regarding the issue.
He noticed that my photo's where doing some heavy work, in the background.
So we turned off the use of photo's, since I hardly do anything with it.

I've managed to check out the terminal log for the last 8h.
Using the following commandline: log show -last 8h --style syslog | fgrep -e " Wake " -e " Sleep "

Please find the log attached to this post.

I hope someone can give me a hand with the issue, because i'm quite literally burning through my battery cycles :p.

Best regards, Billy
 

Attachments

  • Terminal log last 8H.pdf
    560.1 KB · Views: 208
Try coconutBattery for a battery health check:
Already running coconutBattery, no issues.
Battery status is good.
Full charge capacity: 6895 mAh.
Cycle count 84
 
I'll offer my "there he goes again like a broken record" advice.

Want to "stop the power drain"?
Then... just power the MacBook OFF at night, and reboot in the morning.

Yes, I KNOW it doesn't "solve the problem" of where the power drain is coming from.
But it preserves the battery and it's something that actually works.
 
Clearly the machine is doing some kind of work during its sleep period. Over the course of a few days it will probably complete whatever it’s doing and return to “normal”.
 
I'll offer my "there he goes again like a broken record" advice.

Want to "stop the power drain"?
Then... just power the MacBook OFF at night, and reboot in the morning.

Yes, I KNOW it doesn't "solve the problem" of where the power drain is coming from.
But it preserves the battery and it's something that actually works.
Thx for your reply. I'll do so for the next few weeks. Maybe ill find another solution or perhaps an update will solve it soon.
 
I have a similar experience, not quite as bad though. I’ve been trying to pin it to a particular app With mixed results. Fusion seems to be one, but even with it closed, I experience the problem intermittently. I did have it with Mojave as well TBH, and as a result have a battery cycle count higher than what it should be. Just this afternoon I started preparing for a clean install.

I haven’t contacted Apple as I did expect some form of canned answer, but I will run the command you listed and see what I get.

Do you run any of the Logitech apps?
 
Do you have Siri switched on? I've heard at least one person claim Siri listening all the time drains the battery. It's probably a bug.
Switch it off and reboot with it off then see.
 
I have a similar experience, not quite as bad though. I’ve been trying to pin it to a particular app With mixed results. Fusion seems to be one, but even with it closed, I experience the problem intermittently. I did have it with Mojave as well TBH, and as a result have a battery cycle count higher than what it should be. Just this afternoon I started preparing for a clean install.

I haven’t contacted Apple as I did expect some form of canned answer, but I will run the command you listed and see what I get.

Do you run any of the Logitech apps?
Thx for your reply.

I dont run any logitech apps, and what application do you mean with Fusion?
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Do you have Siri switched on? I've heard at least one person claim Siri listening all the time drains the battery. It's probably a bug.
Switch it off and reboot with it off then see.
No siri activated on my mbp.
 
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