Battery always fully 100% charged since update to 12.3 (21E230)

Hey, Dean-z. We're afraid we haven't explained Optimized Charging completely. Optimized Charging only delays the battery from reaching 100%. Charge the MacBook Pro battery - Apple Support states:

Optimized Battery Charging: This feature helps to reduce the wear on your battery and improve its lifespan by learning your daily charging routine. It delays charging the battery past 80% when it predicts that you’ll be plugged in for an extended period of time, and aims to charge the battery before you unplug. You can change this option in Battery preferences.

Optimized Battery Charging is designed to prevent any unnecessary charging cycles. Please review the information under "Understanding batteries in Mac notebooks" in this article Get help with your Mac notebook battery - Apple Support 

About battery health management in Mac notebooks - Apple Support -- The information here will help you improve the lifespan of your MacBook Pro battery.

All the best.

On my Mac (MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports)) I've had optimized battery charging turned on and working ever since the feature was added to MacOS. However, since the upgrade to 12.3.1, the MBP always charges to 100% and stays there, so it appears the algorithm is broken with the update.

My MBP is almost always plugged into a Thunderbolt dock at whatever office I'm working from. Until 12.3.1, it would just hold at about 80%.

Hi Dean-z,

Thanks for following up to let us know. Were you unable to enable Optimized battery charging?

It may take some time for your Mac to learn your charging routine once you've enabled Optimized battery charging.

We look forward to your reply.

Cheers!

I would like to echo that prior to the upgrade to 12.3.1 my battery would hold at 80% while it was plugged in, since my laptop is nearly always plugged in somewhere. (MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports))

Since the upgrade, the battery is holding at 100%, and if I understand battery management correctly this will tend to age the battery prematurely.

same problem here since the update my macbook has been stuck on 100% !!! Before it will only charge up to 80% even while plugged in !! Can you tell me how you managed to solve this? I dont want my device to age quickly, my m1 air just bought this year!

Our apologies for any confusion, Dean-z.

From the description, it sounds as though your Mac is charging as expected. When your Mac is connected to the charger it will charge to 100% and remain at 100% until it's disconnected, even when Optimized Charging is enabled. Optimized Charging only delays or slows the charging once the battery has reached 80%, this does not stop the Mac from charging or prevent the charge from reaching 100%. The articles previously linked provide more information about charging your Mac and Optimized Charging.

Apple does appreciate all feedback regarding their products, services, and features. If you would like to provide feedback about charging behaviors to Apple, you can do so via the Product Feedback website.

Take care!

This morning, magically, my MBP dropped into "Charging on Hold", suggesting that it's finally gone back to holding at 80%.

Took it long enough! It would be nice if Apple could make some sort of manual process to trigger that mode.

ray_frush wrote:

This morning, magically, my MBP dropped into "Charging on Hold", suggesting that it's finally gone back to holding at 80%.

Took it long enough! It would be nice if Apple could make some sort of manual process to trigger that mode.

1. The rule of thumb— you do not have to micro-manage your battery.

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

You can submit your Apple Feedback Product Feedback - Apple

Hello Dean-z,

You can turn on Optimized Battery Charging to help resolve this issue. "Optimized Battery Charging is designed to improve the lifespan of your battery and reduce the time your Mac spends fully charged. When the feature is enabled, your Mac will delay charging past 80% in certain situations. Your Mac learns your charging routine and aims to ensure that your Mac is fully charged when unplugged."If battery charging is paused or on hold on your Mac

Pause or turn off Optimized Battery ChargingIf you want to temporarily pause or turn off Optimized Battery Charging, follow these steps:1. Choose Apple menu  > System Preferences.2. Click Battery, then select Battery in the sidebar.

3. Deselect "Optimized battery charging", then click Turn Off or Turn Off Until Tomorrow.

Best Regards.