• 0 Posts
  • 11 Comments
Joined 2 years ago
cake
Cake day: October 20th, 2024

help-circle


  • I think this is indeed where the confusion has maybe stemmed from?

    An device can just ask for USB 1 transfer speeds over the CC pins of an USB C cable, or data pins on USB2 cable (I don’t know why you would, but it can). Usb is fully backwards comparable.

    Limiting the conductors to (I think 2 in the photo), you won’t have the CC wires (or even data wires in this case) and thus are limited to the default speed of that wire combination.

    There is also nothing wrong with limiting the charging speed (this would also result in a less warm and thus more happy battery). But the question is if the charging speed is enough for your use case.

    Our battery pack packs run at 16W max charging rate, which is enough to keep streaming. But the battery level won’t go up on standalone. Thus is a sacrifice we are willing to make to avoid buying a new powerbank stack


  • I think you got some things mixed up maybe? There is a resistor in an USB C to USB C cables but, this tells the power supply the max rating of the cable so it can respect this. This has nothing to do if both device and adapter actually agree on a higher voltage to change to.

    Also my point was that most magnet connectors only carry 2, maybe 4 connections. Which is enough for power only (2) or USB 2 data (4-5 wires), but not enough for Power Delivery.

    It can and will still charge, just at a slower speed.



  • You require to have the CC pins (CC1 for left and CC2 for right) to be able to use power delivery, these are the data pins that the device and adapter communicate on for highering the supplied voltage (and using power delivery).

    I do not know what magic you use to get PD working on an USB 2 cable. So please share

    I’ve attached a photo of the pins of an somewhat higher end magnetic cable, showing these pins are not available on an magnetic USB C cable Photo of magnetic cable