Optimized Battery Charging Fails on M1 MacBook Pro

coheng wrote:

My new MacBook Pro 14" (M1Pro chip) has Optimized Battery Charging on for 6 days, but still charges to 100% when power cord is plugged in. Power is connected at 10pm, disconnected at 10am, but Mac won't charge to 80% til 7am like my iPhone.

It will take the software a couple of weeks+ to learn your habits— I would not try and micromanage the battery charging.

If you are near the mains leave it plugged in, if you need the portability then run on the battery only.

Monterey 12.0.1 is a new release, point update will follow.... if it needs to be sorted out on macOS side then keep your software up to date.

I would not recommend 3rd party

Keep your Mac up to date - Apple Support

Yeah..... it seems to be the way it is. Everyone says “let Apple do it”, but in my experience there is no such thing as “Optimized Battery Charging”. sure doesn’t work for me either.

There is a program(app) called Al Dente which you could download and install, that really will do this for you.

Yes.... Apple does not recommend any third party apps for any kind of utility. That is a given. Apple has a way that they do things.

You are taking your computer to places that Apple doesn’t want you, to go if you install a third party app.

If you decide to install the .01 update, be aware that while it will fix some things, it undoubtedly(from the reports) breaks other things. My opinion is not to install any updates until the system is mature at about .5. Dlo not install even incremental updates without having a fully functional Time Machine(or Carbon Cloner or Superduper---again not recommended by Apple) back up.

coheng wrote:

My Mac hasn’t done this, yet- hope it’s just a matter of time. I was hoping some in the community could indicate how long, or if this delay was abnormal.

My new MacBook Pro 14" (M1Pro chip) has Optimized Battery Charging on for 6 days, but still charges to 100% when power cord is plugged in. Power is connected at 10pm, disconnected at 10am, but Mac won't charge to 80% til 7am like my iPhone.

To follow up—

after upgrading to Monterey on the day it dropped (11/25) —it has taken 22 days for the battery to settle back down to 80% while being plugged into the mains 24/7.

So I will have to edit my previous comment to "give it 3 weeks+" to learn your computer habits before you witness a change in charging hold and the Battery Health Management software.

coheng wrote:

Thank you, Leroy Douglas. You were right on. After 2 weeks of starting my MacBook Pro charge at about 10 pm and taking it off the charger at about 9:30 a.m., the optimized battery charging has kicked in and has limited my charge to 80% until 1-2 hr before 9:30.

Thanks for your testimonial...

currently my battery has settled at 78%. I have seen it previously settle down to 72%. II am typically plugged in 24/7.

The take home lesson is there is no need to micro-manage battery health.

How do you know it's failed? It may be that your battery needs exactly what it's getting being so new. As time passes and your usage habits change, the charging will change too.