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)
Resolved? I have the same problem, after updating to macOS Mojave yesterday (26Oct).
I turned off Automatic update (System Preferences > Software Update), and over the last three hours whilst in sleep mode, the laptop did not move from 100% charge. I also turned off OneDrive sync, which I might not use in future anyway. Running a MacBookPro 15' 2017 model bought June18 with High Sierra.
Anyone else tried this?
Nigel.
Someone more knowledgable might also reply,....... looks like you have an app (or more than one) running? I checked Activity monitor and found apps in the background using power. You certainly have something preventing sleep.
2013 15" MBP - when I updated to Mojave from Sierra, typically battery drained from 100% to 0% in just 3-4 hrs. Had the cooling fans come on full speed quite a few times. Then after update to 10.14.1, battery went from 100% to 96% when left in sleep mode for 2 days
To activate hibernation mode, run this in Terminal:
sudo pmset -a hibernatemode 25
sudo pmset -a standby 1
sudo pmset -a standbydelaylow 120
sudo pmset -a standbydelayhigh 120
To disable/reduce transparency:
System preferences -> Accessibility -> Display -> Check "Reduce transparency"
I've managed do downgrade back to high Sierra through a quite tedious process...
I'm not sure if you can skip reverting to factory and just make a bootable usb from the High Sierra installer since I havent tested downloading High Sierra from Mojave. Not sure if the new app store allows downloading this installer.
berk136 wrote:
com.apple.desktop.plis
This is the correct file name, i hope it works for you as well
You are still missing a letter "t": it is
com.apple.desktop.plist
Just to clarify, having this file is perfectly normal; everybody should have it.
However, it is possible that for at least some of the people affected, this file is somehow corrupted and therefore is causing the problem.
I would be interested to hear whether or not deleting this helps people.
@ndyr
It's not your battery; it's the update. If you spend money on a new battery, you'll still have the battery drain problem, but you'll also have the new problem of having spent a bunch of money unnecessarily. Don't spend anything on a new battery until Apples fixes this.
I have had major issues with Mojave 10.14.0 and Apple Store. Firstly went into apple store to get a new screen (as they offered to replace it free of charge due to the mess up with the anti-glare black film ok the retina displays scratching off by the MacBook itself!!) and when I got my computer back, the battery drained to 0% overnight when “asleep” and it was absolutely roasting where the battery was.
So I called the apple store immediately and was asked to call in especially as the battery was heating up.
Never had an issue with MacBook being asleep I could had left it on for days and it would have gone down a few percent but nothing as severe as this.
So guy at store checks everything as says all is fine, battery is normal (functioning at 97% capacity - I have a MacBook Pro retina 13” early 2015).
And then I mentioned I updated to Mojave 2 days before I dropped it into store, so immediately the “genius” said it could be a software issue and went and installed 10.14.1 which took a lifetime and to which I then asked was there something running in the background and he said there wasn’t - HE KNEW NOTHING!!
Rang apple supoort next day as battery dead again and I mentioned there was a particular element in the activity monitor “kernel task” that was running a serious amount of CPU - seems the guys in the apple store (or the software) enabled file fault without telling me and it was encrypting nearly 4 years worth of information but it shouldn’t have been running when the MacBook was asleep but it would drain a serious amount of battery.
So waited for this to stop running, guy said “that should be it, 99% sure that was what’s happened”.
Battery not draining fully overnight anymore, however still draining significantly when asleep (30-40% in 8-10hrs) but it was still bugging me and my capacity has now gone down to 94% which to me seems like the software is still killing the battery.
Rang apple again, and their only solution was to do a clean reset of the hard drive and reinstall a clean version of Mojave 10.14.1.
Battery seems to have improved and is going down 3-4% per hour with normal use which is fine, but low and behold yet again overnight it has drained to 62% from a full 100% charge overnight and the battery was hot again - nothing running! Seems there is something that is kicking off when computer is “asleep” it’s like it goes into over-drive and I’ve powernap off, reset SMC etc.
Guy on apple support says they are “aware” of the issue - I’ve been ringing them in between days for the last 3 weeks so I don’t think they are bothering to sort it!!!!!
Hey Guys, I am owning a Macbook air and the battery drained up fast after updating the latest OS Mojave. What i did was upgrade to the ultimate latest os version 10.14.2 and the battery draining issue was a little much more better. At least now my batter won't drain up during sleeping mode. But compare to the last time, the battery draining issue is not entirely fixed thou.
i have tried all mojave versions up to .3 on my MacBook Air 2015. it is the same. I have no problem with sleep drain but when i use it battery life is significantly reduced. I have switched back to High Sierra of course since it is the only way to enjoy the biggest reason to own a MacBook Air, charging it once per week!
So does anyone gave 10.14.4 a go ?
Meanwhile I got a new battery, glad I bought AppleCare for my MacBook Pro 2017. I’m sure, the continuous draining broke my battery. Now with the new battery the draining issue is still present, the only workaround which helps is to set the hibernatemode from 3 to 25.
As suggested previously, create another user to try if there is a user account problem...
No change.
It's definitely an Apple bug... 😟 😟 😟
Found this in pmset -g:
"sleep prevented by AddressBookSourceSync"
I have solved the problem not using a dynamic wallpaper. Isn't it incredible? Shame on you, Apple!
Having read this forum, there are likely 2 workarounds for this:
I am trying these out. Hopefully it works.
macOS Mojave battery drain
