Battery Health Management Issue

blue-link wrote:

The article in the Apple's webpage is rather vague an it is not clear at all

if this is meant to happen. Not to mention that it defies natural intuition.

Welcome to Apple documentation. 😀

Why would it do that?

"to improve the lifespan of your Mac notebook's battery."

Isn't it true that recharging the last percentage (above 80% to 100%) is the range where most stress is imparted to the battery?

This is a wildly complicated topic that has been going on for decades. If I recall correctly, older OS versions used to do that 90-100 cycle while plugged in. Then they stopped doing it. Or maybe they never stopped doing it, but they just displayed 100% during the cycle phase to avoid the support calls. If so, they will likely return to that in the near future. 😄

blue-link wrote:

Is this the intended behavior? 

Yes. See About battery health management in Mac notebooks - Apple Support

You are just lucky it isn't giving you the erroneous "service battery" alert that Apple says it can report.

In my opinion, this function staying as-is will ruin the battery way faster.

12 years ago my old Sony Vaio already limited the battery charge to 80% or 60%, I sold it with the battery as new.

Solution:

Turn the option off and install AlDente app from GitHub. Works way better.

Yes it will, it's the best way to use a modern battery and keep it as it's peek.

Nobody is forcing you to use it or to even have a Mac if you're that upset about it.

People have given you the answers, it's up to you if you want to listen or not

Come on, don't be rude.

Everyone knows that the best way to increase a modern battery lifespan is to keep the charge between 20-80% when possible, and when plugged in all the time, make a cycle once a month and keep the maximum charge below 80%.

In this matter Apple woke up a bit late and not very well.

This function will add unnecessary cycles to the battery and will keep the charge almost always at 100%, the range where most stress is imparted to the battery.

Good luck to you and this new feature.

Tonight I found the battery of my macbook pro (13', 2019,4 ports) keeps depleting when I use mojave 10.14.6 with 2020-003 Update. I can't even find any "Battery health management" option to turn it off ! Try to disconnect and reconnect the charger, not work. After pluging out the cable and then reconnect , the macbook finally start charging. Don't know whether this situation would happen again.

I was having a similar problem. Try holding the power button down for 10 seconds, wait a few seconds then restart. I just did this with Apple Support on the phone and it seems to have fixed the problem. It resets the ports and other system management tools.

I have this same issue. Updated to 10.15.5 two days ago. Yesterday I noticed the battery percentage is decreasing while initially plugged to a power source and at 100%.

Currently as I type this, the battery is not charging even thought its connected to a power source. I have also shared some screenshots with apple via twitter DMS.

NOTE: this problem started after the recent update 10.15.5

I hope they fix this.

MBP 13 mid 2019.

I spoke to Apple support as well about this exact symptom, and they asked me to send my 2019 13 inch MacBook Pro in for repair, only to receive a notification that the repair centre had returned my laptop one day after they received it....

I am waiting to see the service note to find out exact what they did do, but most likely nothing was (and needed to be) done and the MacBook Pro is possibly working as expected. It's just a bit curious that Apple Support themselves aren't caught up on their education regarding this new feature...

You need to be running Catalina 10.15.5 to have battery health management, so that's why you can't find it

About battery health management in Mac notebooks - Apple Support

Same issue. 2020 MacBook Pro.

I don't see that behaviour reported in the article. Does anyone know if this is normal now? Multiple threads now on this topic...

Same issue. 2019 MacBook Pro 13".

Doesn't make sense. I will leave it off until a new correction is released.

4 beta versions for nothing.

Its acting as it should do, nothing wrong with it at all