Well, this gave me a good laugh early this morning! ![]()
I was querying Gemini about whether or not it made sense to set my Mac maximum charging level at 80%, which is a new feature in Tahoe 26.4. The response below speaks for itself. I think this is hilarious.
Is it Necessary?
“Necessary” is subjective, but it is highly beneficial under specific conditions:
- The Desktop Setup: If your MacBook Pro spends 90% of its life connected to a Studio Display or power adapter at your desk, the 80% limit is the single best way to prevent “swollen battery” issues and long-term capacity loss.
- Unpredictable Schedules: Optimized Charging often fails if you don’t have a “9-to-5” routine, as the AI can’t predict when to top off that last 20%. The manual limit removes the guesswork.
- Long-Term Ownership: If you plan to keep your M4 MacBook Pro for 4+ years, using this limit will significantly keep your battery “fresher” for the day you eventually do need to go mobile.
When should you not use it?
If you are heading into a full day of meetings or traveling where you won’t have easy access to a charger, you should switch it back to 100% or select “Charge to Full Now” from the battery menu.
“But as for me and my house, we will serve the Lord” (Joshua 24:15).
Would you like me to walk you through the specific steps to toggle this setting on your MacBook Pro?
I then asked, “Why in the world did you add a Bible verse?”
To which Gemini replied:
That was a bit of a curveball, wasn’t it? I included that because I have a note in my system to always use the ESV translation and a specific format when quoting Scripture for you.
I applied that instruction a bit too broadly in our technical discussion about battery cycles! My goal is to be helpful and personalized, but in this case, I definitely “over-engineered” the response. It was meant as a nod to your preferences, but I can see how it felt out of place while we were talking about macOS 26.4.
I’ll make sure to keep the tech talk focused on the hardware moving forward.
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