macOS Mojave battery drain

I have the same issue on my Macbook Pro 15" 2018. The battery seems worse when I updated to Mojave. Around 40% drops of battery life compared to High Sierra. Apple need to fix this issue. Alos, it seems lagging in the user selection when opening my Macbook from a complete shutdown. I've got no issue in High Sierra. Apple needs to fix these bug ASAP.

Thanks for the tips. Sadly, I've already reset the SMC as well as the PRAM, to no avail.

Also, no program seems to be using more energy than on High Sierra. Firefox has an 8,0 average energy impact, the rest are trifles. The battery is still draining almost right before my eyes.

I've got the feeling sleep mode isn't functioning as it should. I've got powernap turned off but when I opened my MBP (15" 2017 model 14,3) this morning it had updated Pixelmator Pro overnight. That shouldn't happen. Also, when I open the lid, it's immediately fully functional and even the dynamic desktop is just right. High Sierra took a few seconds to get everything going. Note that I have had my MBP plugged in every night so I can't comment on battery drain but something's definitely off.

I'm experiencing the same drain during sleep issue (I lose about 15% over 7 hours - 13' MBP late 2016 with touchbar)

I've taken an intrepid dive into the power management logs and found that the system appears to wake every exactly two hours, gobble 5% power and go back to sleep! Do the entries below implicate bonjour?

Blocks of similar log entries to those below are repeated every two hours. Anybody else seeing this mode of failiure? can anyone experienced interpret these log entries?

x64

2018-09-28 02:09:09 +0100 Assertions PID 70(powerd) TimedOut BackgroundTask "Powerd - Wait for client BackgroundTask assertions" 02:00:08 id:0x0xb00008e8e [System: DeclUser kDisp]

2018-09-28 02:09:09 +0100 Assertions Summary- [System: DeclUser kDisp] Using Batt(Charge: 100)

2018-09-28 02:09:09 +0100 Kernel Client Acks Delays to Sleep notifications: [powerd is slow(8818 ms)] [RP12 driver is slow(msg: SetState to 0)(1128 ms)]

2018-09-28 02:09:09 +0100 Assertions PID 168(mDNSResponder) Created MaintenanceWake "mDNSResponder:maintenance" 00:00:00 id:0x0xd00008e9a [System: PrevIdle DeclUser kDisp]

2018-09-28 02:09:09 +0100 Assertions PID 168(mDNSResponder) Released MaintenanceWake "mDNSResponder:maintenance" 00:00:00 id:0x0xd00008e9a [System: PrevIdle DeclUser kDisp]

2018-09-28 02:09:10 +0100 DarkWake DarkWake from Deep Idle [CDN] due to RTC/Maintenance: Using BATT (Charge:95%) 0 secs

2018-09-28 02:09:10 +0100 HibernateStats hibmode=3 standbydelay=10800 rd=150 ms

2018-09-28 02:09:10 +0100 Kernel Client Acks Delays to Wake notifications: [IOBluetoothHostControllerUARTTransport driver is slow(msg: SetState to 1)(409 ms)] [AirPort_BrcmNIC driver is slow(msg: SetState to 2)(305 ms)] [UPSB driver is slow(msg: SetState to 2)(947 ms)] [UPSB driver is slow(msg: SetState to 2)(946 ms)] [IGPU driver is slow(msg: SetState to 2)(962 ms)] [HDEF driver is slow(msg: SetState to 2)(971 ms)]

2018-09-28 02:09:10 +0100 Sleep Entering Sleep state due to 'Maintenance Sleep':TCPKeepAlive=active Using Batt (Charge:95%) 7210 secs

2018-09-28 02:09:19 +0100 Wake Requests [*proc=mDNSResponder request=Maintenance inDelta=7200] [proc=powerd request=TCPKATurnOff inDelta=28831]

2018-09-28 02:09:19 +0100 PM Client Acks Delays to Sleep notifications: [com.apple.apsd is slow(4327 ms)] [mDNSResponder is slow(9281 ms)]

Battery drains quickly even when not being used. I always leave my laptop on and just close the lid. That used to conserve the battery perfectly. After the update, the battery drains almost completely over the course of about twelve hours of not being touched. Before the update I could leave my laptop untouched for several days and it would still have most of the charge left!

MacBook Pro (Retina, 13-inch, Late 2013)

It is the third days I installed Mojave. The battery keeps drain away in a very short time. I lid off my MBP at 13:39 today there was 86% battery, I lid open my MBP at 22:28 (now) battery remains 62%! what the ****! Checked the system there is not battery consuming program in running!

I don't think my MBP is still indexing after third day installed!

Does anyone get Apple reply?

Hmm, I first saw this thread 5 minutes after I installed Mojave on my MacBook Air (2017) and was worried I'd shot myself in the foot. However, after 3 days a 100% charge is down to 50% (most of the time sleeping). In the last 18 hours the charge actually went from 50% to 52%. I think re-indexing pulled it down quite a bit at first. Gotta say, unusual battery drain doesn't appear to be happening to me.

Same here. On my 2017 MBP 13 inch after upgrading and having it closed and sleeping, after opening it up it was really hot for no reason? Battery life seems to be draining faster than usual but my main concern is how hot the laptop is getting. I really only have Chrome and Mail open and its a space heater! I did not have this issue on High Sierra. Hopefully a patch or update will be released soon.

Same issue here. Using Dark mode on a MacBook (Retina, 12-inch, 2017).

When first installed, I did an upgrade from High Sierra, but had so much lag I had to erase disk and reinstall clean. Only issue now is the battery draining when lid is closed. In High Sierra I could have it put away like that for days, but now have to recharge every other day.

Hi again,

seems to be better now, but it will be confirm tomorrow after one night.

Now the battery drain seem to be 0...

So if it's that, the system after upgrade need a lot of time to make some job..

It would be good from Apple to inform the user... Bad user experience, it's can be so easy to inform the user that for few hours/days the system do a maintenance and will drain the battery...

I'll keep you inform tomorrow if everything come back to normal..

S.

Hi,

thanks for the info, I've put 600sec instead of 60s.

I've done it now on the MAcbook12.. will see next night

This night it was less draining but still a lot. 99% a 20H -> 70% this morning.

compare 2 days ago it was 99% at 22H -> 4% in the morning. 😟

I charged my Mac Pro 2017 to 190% and then put in my bag. I then got to work pulled the Mac out of my bag and I noticed it was warm to the touch. It was in the bag for about 3 hours before I used it. The battery had drained to 40%. I used my Mac normally.

Today I plugged in my Mac overnight and normally it’s cool to the touch at 100% but it was warm to the touch. I put the Mac to sleep while it charged. It has never done this.

OK - a couple of days on from my last post (and a week since the upgrade) and it seems that contrary to my last post, I'm still affected.

The last two nights sleep lost 5% and 15% respectively (as opposed to <2% before Mojave). The MPB isa been on a lot over the weekend and a few hours each. night (all on mains) and sleeping a lot (off power) between.

Activity monitor last 12h shows the drain in the graph at the bottom of the energy screen but the process list above does not give a clue as to the power hungry process.

Something IS going on beyond the normal upgrade post processing.

Also having this issue. Put the Mac to sleep with 40% and woke up 7 hours later to a completely drained MacBook Pro 2016 (Touch Bar).

With High Sierra I never had this issue, it may have drained 1% during the same time frame.

Hi I'm having the same issue! I recently downloaded MacOS Mojave on my MacBook Air 2017, and the battery life has reduced drastically. Even when I leave it in sleep mode it uses a lot more battery than the previous system. For example, after being charged and left for the night at 100% in the morning the battery was at 72%. This had never happened before since I usually use it like this. Additionally, when I'm using it the battery seems to last half of what it did. Has anyone found any solutions to this? I tried rebooting it and using the commands suggested in this thread but it didn't really help.