• abhibeckert@lemmy.world
    link
    fedilink
    English
    arrow-up
    9
    arrow-down
    7
    ·
    edit-2
    9 months ago

    The USB-PD spec can cover a verity of voltage and amperage combinations

    That’s not really true - it maxes out at 5 Amps which is only a decent amount of power if you use (relatively) high voltages. Vision Pro runs at 13 volts, which isn’t supported by USB and if it was that would only be 65 watts - nowhere near enough to power this product.

    Running at higher voltages (USB can do up to 48 volts) would likely have problems, it might be less efficient for example (which would mean they have to give it a larger battery).

    • datendefekt@lemmy.ml
      link
      fedilink
      English
      arrow-up
      8
      arrow-down
      3
      ·
      9 months ago

      I’ve heard that argument floating around and I don’t buy it. Step-up and down converters are a thing.

    • AbidanYre@lemmy.world
      link
      fedilink
      English
      arrow-up
      6
      arrow-down
      1
      ·
      edit-2
      9 months ago

      That’s a terrible argument. Apple could have very easily made this run at something other than 13v.

    • cole@lemdro.id
      link
      fedilink
      English
      arrow-up
      1
      ·
      9 months ago

      I’d be surprised if the headset even drew 65W, the other points notwithstanding