Hi, I’m using the included lipo and it’s plugged into the board (refuses to boot unless it’s plugged in). I have a usb-c plugged into my laptop and it’s running at the moment, but the battery dropped from 60% to 1% while it’s still plugged in. As per the docs (“The battery can be charged through the USB-C port while the device is running. Additionally, the battery is fully mapped and supported by the Tachyon system.” ). So why isn’t the battery charging? What can I check? Thanks.
Edit: This is my first time using it, it was still on the existing charge from it’s arrival. While it was charged, I could connect, now that it’s at 1% it’s sitting there, but as soon as I try to do anything it disconnects, which might be brown out since the docs say usb alone can’t support it.
Sooo.. Does that mean these can only be charged while turned off, and they are only useful for the duration of the battery charge plus a little bit from the usb-c cable even if plugged in? Do you need to disconnect them and hook the usb-c up to a phone charger to get it charged? Any advice appreciated.
Is it connected to the laptop by a USB-A to USB-C cable? That will not work, as the Tachyon requires USB C-PD, which does not work over a USB-A to USB-C cable. Also some USB-C power adapters, especially those designed for the Raspberry Pi 4 only, do not support USB-PD.
usb-C to usb-C, it doesn’t charge from my laptop or from my usb-C hub. I moved it to a phone charger directly and now it’s up and running and charged again. I’m just not sure what I need to do to get it charging on a computer now.
Hey, what is the computer?
Unsure how true this is but I ran a quick google search and got this:
“not all USB-C computer ports support USB Power Delivery (PD). USB-C is a physical connector specification, while USB PD is a separate power negotiation protocol. You can have a USB-C port that only supports basic USB 2.0 power levels, or it might support higher speeds or alternate data modes like DisplayPort or Thunderbolt, which also require PD capabilities, but you must check your device's specifications to confirm“
Best,
As it seems to accept power via the phone charger, I can only assume for now that’s the likely cause. I’ll have to try it out on a different laptop once I have one handy.
Thanks