[SOLVED] How to find out exactly which background process (not app) is causing battery drain ?

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oioioioi

Jun 26, 2021
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Hello!

On my MBP, my battery has been dropping from 100 -> 25% in < 2 hours, with: Chrome, Spotify, Telegram running.

I've been trying so many things like SMC reset, test account, safe mood, reinstalling macOS with my files/programs intack and my battery still drains like crazy.

Today I tried creating a new partition and installing macOS anew - and it seems like the battery is pretty stable here. 100 -> 90% in 1 hour, which is pretty good, compared to what I had previously. So that rules out the hardware issue.

This brings me to what I dread most... Having to restart from scratch. I'd hate to have to wipe out my entire mac (lots of configs and settings).

Is there a way to find out what EXACTLY is causing my battery drain on my main partition? I've used activity monitor before and the applications seem to be running ok, so I am not sure if it is some process in the background. However, under 'CPU' there is indeed a lot of items there, so maybe there are some background processes ?

How can I pinpoint exactly what's acting up, without having to reinstall my entire MacOS (and starting afresh)?

Mac Specs:
MacBook Pro (13-inch, 2019, Four Thunderbolt 3 ports)
Processor 2.8 GHz Quad-Core Intel Core i7
Memory 16 GB 2133 MHz LPDDR3

Thank you!
 
Solution
S
Would run Command+D to see if all hardware is good including the battery.

Would avoid Chrome on a Mac. Spotify does use significant power (mine does) and internet.

Would go back to the original partition and try a new user (Test). The original user may be corrupt. Especially if you are using Chrome, its horrible.

Three years on a battery can be relative. depending on use.
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Would run Command+D to see if all hardware is good including the battery.

Would avoid Chrome on a Mac. Spotify does use significant power (mine does) and internet.

Would go back to the original partition and try a new user (Test). The original user may be corrupt. Especially if you are using Chrome, its horrible.

Three years on a battery can be relative. depending on use.
 
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Solution
Hi guys, it's definitely a software issue as battery is fine and it was replaced a month ago.

Only way that resolved it was: creating a new partition and installing macOS. The battery didn't drain in this partition. When I reinstalled my OS on my main partition, the problem persisted.

Apple has told me to erase and reinstall - will be migrating from my time machine. Not sure if it would help tbh, as it seems very much like a software issue. But we'll see! If it still faults then I'm not sure what to do :/
 
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spinningstill said:
Sounds like the original user is corrupt. Its always good to start fresh sometimes. I did that with my eight year old phone recently. TM might have corrupt files as well. Hope it goes well.

Recommend Backblaze as well.
Click to expand...
Hello! Thanks for the response. A new test acc on the main partition didn't work too. Only the fresh install of macOS on the new partition worked.

Is Blackblazde a cloud storage?
 
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Well there you go time to start fresh. Would ensure you have a back up and wipe the drive completely. Wipe it at the top level.

I do see others complaining about battery issues with the 13". I moved to a 15" years ago.

Backblaze in an online back up service, not cloud storage. Its excellent!

Graciously,
Gary
 
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spinningstill said:
Well there you go time to start fresh. Would ensure you have a back up and wipe the drive completely. Wipe it at the top level.

I do see others complaining about battery issues with the 13". I moved to a 15" years ago.

Backblaze in an online back up service, not cloud storage. Its excellent!

Graciously,
Gary
Click to expand...
By start fresh do you mean reinstalling without using time machine for my files or?

Thanks
 
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Yes, wipe drive completely. Do not use TM. Would also recommend Carbon Copy Cloner instead of TM.

I recently had an issue with my phone (8) and tried both restore from cloud and fresh. Fresh was the only thing that worked (I could not send photos to Android users).

Graciously,
Gary
 
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spinningstill said:
Yes, wipe drive completely. Do not use TM. Would also recommend Carbon Copy Cloner instead of TM.

I recently had an issue with my phone (8) and tried both restore from cloud and fresh. Fresh was the only thing that worked (I could not send photos to Android users).

Graciously,
Gary
Click to expand...
Thanks Gary! Already halfway through restoring with TM. If it doesn't work I'll have to go for a fresh install. Stay safe!
 
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