3 ms·

Do they still ground through the user like the intel models?

• mre 4y ago
  Apparently they still do [1], even though I have an M1 and never experienced any of the "micro vibrations" that I had on the old Intel Macs. [1]: https://forums.macrumors.com/threads/macbook-pro-m1-max-almost-maxxed-out-short-power-cable.2328561/page-2 https://forums.macrumors.com/threads/macbook-pro-m1-max-almo...
  • trarmp 4y ago
    Oh, I finally have something of value to add to a HN thread! I was always bothered by this and managed to fix it a few months ago. I had grounded my power-plug-box to the central heating system with some copper (don’t ask), but was wondering why I still got those vibrations whenever I was charging the MacBook. Turns out, charging through just the monitor (via Thunderbolt) solved this: the monitor was grounded. The default MacBook charger (EU) plug just has just two prongs; a third one for grounding exists, but has to be attached separately. Edit: indeed, this was on a 14” 2021 MBP. They definitely still get the vibrations when connected to a power source without grounding.
• tpush 4y ago
  Yup, and you feel static charge when it's plugged in, too.
• adamparsons 4y ago
  This is fixed with using a power cable on the charger block instead of the bunny-ears adapter. Apple removing the power cord in favour of only including the bunny-ears adapter was such a mistake
  • wpm 4y ago
    It doesn't help that the power cord extension they used to ship (and can still buy for $20) flat out refused to be coiled in any sort of way. Even a large loop would spring back straight immediately. Absolutely awful experience. I kept my old power cord extension from my MagSafe 1 charger from 2009 for this very reason.