this post was submitted on 13 Nov 2023
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what is the better way to charge m1 MacBooks while using it in clamshell mode ? (alien.top)
submitted 2 years ago by Neither-Confusion-85@alien.top to c/apple@hardware.watch
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I recently bought an external monitor so i can use it in clamshell mode. I use it for around 10 hours a day. So, what is the safest way to use it so i don’t ruin the battery health? Is it ok to always leave it plugged in all the time? I think these are the ways how people use clamshell mode. I was wondering which would be the better way ?

  1. powering both macbook and monitor separately (140W power brick)
  2. powering monitor and charging macbook via USB C (max delivery 80W)
  3. powering monitor and charging macbook only when required using Amphetamine. (140W power brick)
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[–] breakfastatstiffanys@alien.top 1 points 2 years ago

Eventually the machine should limit charging to 80% by itself to preserve the battery. You could also use an App called Al Dente to do the same. If you regularly use the full power of the machine, go with the permanent 140W charger, if you only use the machine for office tasks and rarely demand high performance of the machine, then go with the USB-C charging.