M1 MacBook Air Battery Drain while asleep

I had this exact issue with brand new M1 Macbook Air. After experimenting I found that turning off wifi when the computer was sleeping solved the problem of battery drain. I never was able to work out exactly what it was doing, but it needed connectivity to do it - so cut the connectivity, solve the problem.

I then tried to figure out how to automate things so that wifi would be turned off when the machine is asleep and turn on automatically when it wakes up.

This is harder than expected. In the end I found a (modest cost) paid-for app called Keyboard Maestro (about $35, has option of a free trial).

These are the steps I followed:

1. Move the app to the Applications folder.
2. Create a new macro in the Global Macro Group, called "toggle wifi"
3. Trigger the macro on the event "Power status changes"
4. Select the event "Execute AppleScript" and run this code:

set status to do shell script "networksetup -getairportpower en0"
if status ends with "On" then
	do shell script "networksetup -setairportpower en0 off"
else
	do shell script "networksetup -setairportpower en0 on"
end if

That's all. Now, when you've been at your desk working on your (plugged in) Macbook Air, and want to sign off without leaving your machine plugged in all night/weekend, you just yank out the power cable, and automatically the wifi turns off. When you return the next day/week, your battery will still be on 100%. Plug in as normal and your wifi reconnects automatically :)

You can play around with other triggers to suit your own situation - removing the power cable worked for me. I couldn't find a solution that turned wifi off when the display went to sleep, but this approach above handles the problem for me in 99% of cases. Good luck!

soundman07 Said:

"M1 MacBook Air Battery Drain while asleep"

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Thank you or the screenshot.

For reference...

Troubleshooting a Draining Mac Battery:

Try a New Charger:

If it is charing from an external device, then use a new charger:

• Power & Cables - Mac Accessories - Apple - Select "Mac Compatibility" on the left
• Find the right power adapter and cable for your Mac notebook - Apple Support

A Few Links to Refer to Power:

• If your Mac doesn't turn on - Apple Support

• How to turn your Mac on or off - Apple Support

• About Mac notebook batteries - Apple Support

• Charge the MacBook Pro battery - Apple Suppor

• If your Mac battery won't charge - Apple Support

I'm no expert- here learning 'tips and tricks' with my first MAC after decades on Windows... but it looks like something is running and not sleeping... does not appear as easy to see the details of what is using cpu/disk/network in MAC...

Did you click the battery icon at the upper right/Battery Settings, to get to your screenshot- it should show the offender(s) if something is running and running, before you click the Battery Settings choice, but from AppleMenu/System Settings/Battery you won't see that quick bit of info. Also, you may want to click the OPTIONS at the bottom of your screenshot, and make sure that 'wake for network access' is set to 'Power adapter only', in case whatever isn't sleeping is using the network- that will eat power real quick... just a thought here...

I'm having the same issue. Were you able to find any solutions? I suspected OneDrive, another post blamed Messages. Activity Monitor suggested Home. I'm at a loss.

maybe you have mouse/cable/headphones still connected to Mac which prevents Mac from sleeeping