Optimised battery charging for the first time in 6 months - only on USB-C, or due to low cycles number?

AndersGoran wrote:

I've been using an M1 Max 16" MacBook Pro since the beginning of December 2021. Running Monterey 12.3.

I've always charged it with the included 140W charger + MagSafe 3 cable. According to iStat Menus, it just passed 40 charging cycles (not a lot, I know) and battery health is still at 100%.

Up until today, I have never seen that optimised battery charging has kicked in, even though it has always been enabled under Battery Settings. Today, it just so happened that I tried charging the computer with my wife's 87W charger over USB-C, and now it says it will be fully charged tomorrow morning at 05:00.

So this is the first time in the 6 months I've owned this machine, that it has actually paused at 80%.

...

It would seem strange that this feature would work only when charging through a USB-C port.

If it ain't broke don't fix it.

You do not have to micro-manage the battery.

It sounds like BHM is working as expected—About battery health management in Mac notebooks w/ silicon

About battery health management in Mac notebooks - Apple Support

the rule of thumb — if you are near the mains leave it plugged in, if you need the portibility then use the battery only.

Thats it.

I would not worry about, I would not second guess it, I would not try a drill down on the BHM software....for some explanation.

It is recommend to use the charger that ships with the Mac—you can read the tech specs, read the foot notes:

MacBook Pro (16-inch, 2021) - Technical Specifications

if you run a diagnostic it will report an error...for ex. so the software is managing and overseeing the battery health for you—