MacBook Air M1 battery drain when sleeping

Hi. Purchased a great new Macbook Air M1 last week. It is connected to an HP external monitor 21.5 via Lemocrete HDMI/USB splitter/hub, an HP mouse (bluetooth) and Arteck keyboard (bluetooth).

Laptop left in Sleep Mode, 100% Battery, with Wifi and Bluetooth connected but devices turned off and HDMI cable detached. Noticed dramatic 40% battery drain when re-opened 12 hours later. Is this normal?

Thx

They are aware of this draining problem. No one here left any open app or transferred data from older device.

In my support inbox I received suggestion to instal Monterey Beta and see if the problem is solved. We will see when it officially launches. Probably Big Sur doesn't manage sleep mode very well.

I had the same issue and had also reported here.

Here is a good news.... that worked for me.

Remove the HDMI cable going to the external monitor. I believe Apple support guys are watching this thread and can report to fix it

Cheers, Ravi

Thx. I actually detached the HDMI from the MacBook but literally closed the lid, detached HDMI and walked away. Hence I did leave a few Apps open and Wifi/Bluetooth on. I will keep experimenting but 40% was quite dramatic. This is hardly a new piece of hardware, either.

Mine drains fast with my usb rollerball back lit mouse. I have it plugged in to an Anker external SSD... it is a little hub with memory. I eject it from my desk top, and my mouse passes through.

I spend a lot of time in bed, and my Air sits idle, screensaver short time. I might use it for maybe 30 minutes off and on over 2 hrs or so..

battery lasts longer with nothing plugged in.

I closed my computer with 40% battery remaining, nothing plugged in to it, only an internet browser open when I closed it. Reopened it to find less than 2% battery. It was fully charged at 9 am and nearly fully discharged 12 hours later. I have been a Mac customer for over 20 years and have never ahd this bad battery life from prior models, nor did I have any of them drain noticeably while the laptop was closed/asleep. Battery chart claims the computer was open/screen on/awake for its last 3 hours which it absolutely was not, it was closed and packed up fully and was not ajar upon reopening it when I got the low battery notice. Disturbing as it's less than 6 month old brand new purchase. I am obeying all of Apple's battery optimization rules to my knowledge.

I should clarify: mine dropped 40% in power while in what should have been sleep mode for 2 hours. I closed the laptop fully and completely, with only an internet browser open at the time, no external anything plugged in to it, no monitors or usb connections. 2 hours later power has dropped 40% and the battery graphs claim the computer was open, which it was not, its last 2 hours-but to drop 40% in two hours if it was open is too fast, plus, it was closed/shut properly and sleep should have activated. Brand new laptop? m1 chip? Seems subpar.

Ive had mine a month and the battery is garbage. My 2014 MBA is infinitely better at holding a charge. Kind of a shame - i wish i hadnt bought this new one as longevity is at the top of my list when i am on the go

Grinmister wrote:

… Peripherals should not do this. But they do, and it's an easy fix.

So long as peripherals are using power from the MacBook, this is entirely what should be expected.

After all, where else is the peripheral supposed to get its power, when it doesn’t have a separate power source?

I am having this 16 to 20% drop overnight ( about 2% per Hr. )but I have had my MacBook Air M1 over a year. This problem did not exist until I installed MacOS Monterey. I always make sure my battery is fully charged before putting it to sleep and on many many occasion with Big Sur the battery was still at 100% in the morning with open applications. My assumption is Apple has something going on that they are not telling us about.

Anyone else noticed the same.

I faced similar issue with my Macbook air, which i get repaired in Delhi, India. MCB was under warranty they replaced motherboard and Fingerprint sensor after that there is not a single % down over night.

shailesh279 wrote:

I faced similar issue with my Macbook air, which i get repaired in Delhi, India. MCB was under warranty they replaced motherboard and Fingerprint sensor after that there is not a single % down over night.

Yes. There are cases where the issue is Hardware.

There are other times (more often than not) where the issue is software (almost invariably due to third-party software).

My MBA is from 5/21. Now it has 56 cycles (many of them because of the self draining) and Battery Health is 91,7% (coconut battery).

i also have some strange audio input/output device issues.

i will contact apple support, because this bad battery experience and SOH after 56 cycles is very bad.

I have noticed this with my M1 Macbook Air too. After reading this thread I tried last night disconnecting the small USB C hub I use to connect an external webcam amongst other things and hey presto no battery drain. Left in sleep all last night and this morning 100% battery remaining whereas previously in the same period the battery would have been more than 50% depleted.

Annoying that I will have to remove and reinsert the hub to stop this from happening and certainly shouldnt need to do this but for now at least I can come back after a couple of days away and find my laptop with a still charged battery !

Scott Paterson2 wrote:

I have noticed this with my M1 Macbook Air too. After reading this thread I tried last night disconnecting the small USB C hub I use to connect an external webcam amongst other things and hey presto no battery drain. Left in sleep all last night and this morning 100% battery remaining whereas previously in the same period the battery would have been more than 50% depleted.

Annoying that I will have to remove and reinsert the hub to stop this from happening and certainly shouldnt need to do this but for now at least I can come back after a couple of days away and find my laptop with a still charged battery !

Is the hub powered through the USB-C connection with the MacBook (so it doesn’t have a separate power source)?

Then why wouldn’t you expect the hub to drain your MacBook’s battery?