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macOS Mojave battery drain

Just updated my OS to Mojave this morning and brought my laptop to work. It was on full charge when I left home. 2hrs after using it, the battery percentage was down to 40% which never happened before during any of my regular use. Also, the texts on the screen are blurry.

MACBOOK AIR (13-INCH, 2017), macOS Mojave (10.14)

Posted on Sep 25, 2018 9:17 AM

Reply
743 replies

Oct 12, 2018 12:12 AM in response to hvbris

Disable acrobat cloud sync settings, and reset PRAM & SMC, Then reboot in safe mode and select startup disk and run first aid, for me its resolved.. (MacBook pro 15" with touch bar).

See the following link to reset PRAM, SMC & SAFE MODE


Reset NVRAM or PRAM on your Mac - Apple Support

How to reset the System Management Controller (SMC) on your Mac - Apple Support

Use safe mode to isolate issues with your Mac - Apple Support


Hope problem resolve..

Oct 23, 2018 1:17 PM in response to senthil0525

Downgrade to High Sierra

1. Backup all the files on the Mac to external hard drive, cloud (make sure your can approach separate files) because my Migration Assistant (times Machine backup) didn't have backwards compatible with an older version of OSX, if use Time Machine on the newer OSX.

2. Download High Sierra https://itunes.apple.com/us/app/macos-sierra/id1127487414?l=en&mt=12&ign-mpt=uo% 3D4 or the link "Go to the Mac App Store" on the bottom of the page Upgrade to macOS High Sierra - Official Apple Support

3. Get an USB Drive 8GB.

4. Make an Bootable USB drive. How to create a bootable macOS High Sierra USB Install drive - YouTube

5. HOW TO CLEAN INSTALL macOS High Sierra [With A BOOTABLE FLASH DRIVE] - YouTube


Hope this will help!

Nov 5, 2018 12:47 PM in response to hvbris

Problem solved after 2months!!!!!!!!!!


I have (had) this terrible issue for 2months.. very frustrating ... and contacting Apple via twitter/chat/phone for the last two months. They are really amateur and every time they told me something crazy to check! for sure the problem is New OS Mojave but they don't accept and want to check from A-Z.


I tried all the solutions mentioned here but they didn't work.


Last thing that I checked was resetting SMC. Since 3 days ago the problem is 80% solved but not completely. now the battery lasts more and less consumption during sleeping mode. But still, I have some fluctuations in battery percentage for example it increase from 75% to 76%!!


Reset SMC in MacBook pro2016: 1- turn off the laptop > 2: hold (shift + control + option + power) for 10sec


Here is how to reset SMC: How to reset the System Management Controller (SMC) on your Mac - Apple Support


Hope it helps you!


Really sorry for Apple!!

Nov 11, 2018 4:12 PM in response to eklavyarjun

As I continued observing, my battery during sleep/hibernate mode (default)... looks like the battery draining issue solved on my mbpro 13 retina. only consumed 3-5% max on overnight.


macOS High Sierra v10.13.6 updated via appstore to macOS Mojave v10.14.1, I did:

- reduce motion in accessibility/Display

- stop auto update on appstore

- turn off location services

- untick auto adjust brightness

and this works on my side...


But, normal usage battery draining issue still remains the same. from 100% to 5% in 4hrs max... mostly safari and messages apps using significant energy.


Informing Apple via tweeter and they always give me this link: https://support.apple.com/en-us/HT204054?cid=tw_sr

Don't even bother telling "Apple is working in it, blah blah blah... nothing from them"

Feb 5, 2019 3:09 AM in response to duncanwot

OK, having tried the above suggestion I my fan was running continuously and the mac was running slow. Also it didn't seem to be charging at all. 24hrs later still the same. So I reset the System Management Controller (SMC) and we seem to be back to normal, the fan is not running and MacBook is charging. Not sure if the charge will last so I'll let you know.

Resetting SMC: Power off before doing the keystrokes, see - https://support.apple.com/en-gb/HT201295

Nov 10, 2018 3:27 PM in response to hvbris

I sink it only last Mojave Problem and deep software

My MBP 2017 work fine on all betas Mojave and GM, But when I upgrade to 10.14.1 its drain All battery for the night from 100% to 0%


  1. I try NVRAM, PRAM и SMC doesn't work.
  2. Tcpkeepalive 0 doesn't work
  3. Hibernatemode 25 doesn't work
  4. Downgrade to Mojave and clean installing GM doesn't work
  5. Downgrade to High Sierra and clean installing doesn't work
  6. Turn off Bluetooth, Wifi doesn't work
  7. Turn off dark mode, bg to solid color doesn't work

Its only 180 cycles

Apr 29, 2019 6:55 AM in response to pduke7

@pduke7


  1. I believe you're right. The wake drain problem has never been solved by the thousands of people who visited this thread after Mojave hobbled their healthy batteries.
  2. The main proposed fixes on this thread have involved giving up on the graphical interface that once defined Apple Computer as intuitive and user friendly, and instead using a command-line interface just like in the days of DOS, Commodore, TRS-80, etc.


Yes, it feels like Apple, unlike Apple Computer, is losing interest in computers. Apple has pointed out recently that the corporation is basically shifting its focus to becoming a banking company because the devices market--and by inference the OS platforms--is no longer growing at an adequate rate. The Mojave fail brings that home.

Aug 6, 2019 11:29 AM in response to CZEEE

Actually there are 2 issues here.

  1. Macbook is draining battery while sleeping
  2. Macbook is draining significantly more battery while in use in Mojave than with High Sierra.

I believe - correct me if i am wrong - our major issue the past months is the second.

And since i have a MacBook Air 2015 like yours i have to ask:

Are you referring to the first issue? Me i never had such problem.

If you are referring to the second issue, do you have actual memories (or even better saved stats or something) of your Air on High Sierra? Are you sure that it can hold up the same hours while in Mojave?

Jan 18, 2019 8:02 PM in response to hvbris

I too had noticed increased battery drain after upgrading from High Sierra to Mojave on a 13" late-2013 Retina Pro. Both in standby and in general usage. Not measurable, but i found myself surprised at the battery consumption, which HS never did to me.


After trialling disabling :


powernap

auto update

find my mac

stocks

news

dynamic desktop

content caching


it was disabling content caching which dramatically reduced my standby usage. 1-2% after being left on standby overnight:

^ image above is from Activity Monitor with Content Caching disabled, all other options listed above ENABLED


i had content caching active during High Sierra also, and i recall no adverse effects, so something has changed / is bugged in M

Jan 24, 2019 12:48 PM in response to hvbris

Y'all can check your battery status: (OPTION KEY + APPLE IN THE CORNER TOP -> SystemInformation (first option) -> battery (third option) ) check your mAh and post it?, look my cycles only 87 and i cant believe that i have about 2 hours of battery life, more than $2000usd in my loved one third world country for this???

Anybody has try the preview of 10.14.4?


BTW: i just test the next one, its so annoying but when i use the keyboard my battery life decrease, i dont know why, i read that the new mbp keyboard and the battery are together but it doesnt have any sense that improve when i click nothing but read a web for example.


Jan 25, 2019 4:51 AM in response to hvbris

That's strange. On my computer the battery lasts 7 hours, the same as it did before upgrading the computer. (It's a 2015 MacBook Pro, so it's not exactly new.)


You can try going into Activity Monitor and going into the Energy tab. (See the screenshot below) What applications have a high Energy Impact? Close the apps that do. You can also try turning off Dark Mode.

macOS Mojave battery drain

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