The laptops can enter a special standby mode that keeps the network alive, so they will immediately resume when the lid opens. This means, of course, that the laptops never actually shut down and run constantly.

true, but i actually turn that explicitly off on physical network settings in windows.

My guess is windows will apparently not let u control such things, as the advertising data pipe has to be alive no matter what. Microsft seems to be both google and apple at the same time, selling ads and hardware.

I'm really sorry that didn't work for you.

Had the same with Apple. An update made it quit sleeping correctly when using a microsd card to expand storage (it worked fine at first).

Me too.

The Yubikey nano -- the little one meant to be permanently left in a usb slot your laptop -- absolutely nukes the battery in my mac, draining it on "sleep" to zero within a day or so. Infuriating incompetence.

Huh. What version Mac/OSX are you using? I've had a Yubikey Nano plugged into various iterations of a MacBook Pro for years and haven't noticed this. The worst battery killer for me is Firefox.

10.14, late 2019 16 inch mbp

I thought I was being crazy and that maybe something was brushing it, so I let it sit in a moat on my desk immediately after booting. Full battery discharge in sleep in under 30 hours.

Without the yubikey, a full weekend sitting on my desk from a full charge leaves a reported 100% of battery.

That’s not quite possible. I wish 10.14 supported the 2019 rMBP 16 but alas..

How did you get macOS 10.14 running on that MacBook Pro?