macOS 11.3 Could Ensure Your Mac is Fully Charged in Time for Calendar Events

Apple appears to be planning a meeting-friendly improvement to its Optimized Battery Charging feature on the Mac in macOS 11.3.

macos big sur calendar
New code in the second beta of macOS 11.3, discovered by MacRumors contributor Steve Moser, suggests that the upcoming software update will ensure a Mac is fully charged to 100% prior to a scheduled calendar event, such as a meeting.

macOS 11.3 will ensure that a Mac finishes charging to 100% three hours prior to a calendar event's start time, the code suggests, although the exact timing may vary depending on whether an alert is set for the calendar event.

Macs running macOS 10.15.5 or later have an Optimized Battery Charging feature that helps to reduce wear on the battery and improve its lifespan by learning the user's daily charging routine. The feature delays charging the battery past 80% when it predicts the user will be connected to power for an extended period of time, and aims to charge the battery before they unplug from power, according to Apple.

Optimized Battery Charging can be toggled on or off in System Preferences > Battery > Battery on both Intel-based and M1-based Macs, but there are certain other battery health management features that cannot be disabled on M1-based Macs.

Related Forum: macOS Big Sur

Top Rated Comments

NT1440 Avatar
42 months ago

How about it just charges as much and as fast as possible when I plug it in?
Because that decreases the overall lifespan of the battery. This is a feature for macs that are plugged in most of the time. It prevents it from being charged fully all the time which is also bad for lithium based batteries.

If you use it unplugged frequently it will do exactly what you’re expecting, but this article is discussing a subset feature of Battery Optimization which is different from your use case.
Score: 19 Votes (Like | Disagree)
Neberheim Avatar
42 months ago
I’ve been waiting for this. I hope that iOS will get a similar feature using the sleep/wake alarm.



How about it just charges as much and as fast as possible when I plug it in?
Like it does when you turn optimizing charging off?
Score: 10 Votes (Like | Disagree)
itsmeaustend Avatar
42 months ago

Sigh...only on MacRumors....
What, a logical response?
Score: 9 Votes (Like | Disagree)
Crzyrio Avatar
42 months ago

I’ve never needed this and never will. I’m good at charging my mac. Apple believes they still own the device and can do whatever they like with the software and hardware even after you bought it.
The 99% of other people, will benefit from things like this.
Score: 7 Votes (Like | Disagree)
BeefCake 15 Avatar
42 months ago

I’ve never needed this and never will. I’m good at charging my mac. Apple believes they still own the device and can do whatever they like with the software and hardware even after you bought it.
Whatchu talking about Willis?!
Score: 6 Votes (Like | Disagree)
BF1M Avatar
42 months ago

I’ve mentioned before, I wish i could manually control when my iPhone, iPad, MacBook Pro charges.
Wait let me try this....Ahem " Der you mean like when you connect it to a charger? Hardy Har Har..."
Score: 6 Votes (Like | Disagree)

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