The number of e-bikes that charge via USB-C just doubled. From one… to two. Rivian’s ALSO e-bike, the company’s new...
  • sunstoned@lemmus.orgEnglish
    8·
    5 days ago

    The magic of PD is yes, the big charger could safely charge the device that needs less power.

    You’re right about slow charging from a tiny charger to the bike though. Some people surely wouldn’t think that part through.

    • markstos@lemmy.worldEnglish
      2·
      5 days ago

      Though maybe the bike could detect the slow charging case and put a message on the screen.

    • Sadbutdru@sopuli.xyzEnglish
      2·
      5 days ago

      Partial discharge? Is it something active about usb that lets the thing being charged dictate the power? Like they’re in digital communication via usb? Or just physics?

      • Crassus@feddit.nlEnglish
        8·
        5 days ago

        Power delivery. If both the charger and device implement it according to the spec they indeed negotiate the voltage and amperage they will deliver. However not all chargers (properly) implement the spec

        • Sadbutdru@sopuli.xyzEnglish
          2·
          5 days ago

          So is it generally more expensive brand name ones do stick to the spec, or not as simple as that? I’ve been often using my 65W laptop supply to charge my phone, earbuds, whatever. But it’s not OEM, so now I’m wondering…

          • Cort@lemmy.worldEnglish
            1·
            4 days ago

            It depends. Nintendo for example notoriously doesn’t follow the spec, and some budget laptop oem chargers don’t support all the voltages either