Asked on Super User by mab3602, 2 years ago. No reply there for at least a week.
20V from Dell Precision 3581 USB C/Thunderbolt 4 Port with Power Delivery
USB-PD provides up to 100W of power through the USB-C Port, so I wanted to use 20V power from my Laptop to power my device. According to the data on the Dell homepage regarding the ports, they are ports with Thunderbolt 4 and power delivery . 2 ports are labelled with the lightning bolt for Thunderbolt 4 and the Thunderbolt 4 specification states ...and up to 15W for computer-powered accessories. So if its possible for Thunderbolt to deliver this power, it should also be possible for PD. Dell Manual regarding Ports Specs: https://www.dell.com/support/manuals/de-de/precision-15-3581-laptop/prec
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20V from Dell Precision 3581 USB C/Thunderbolt 4 Port with Power Delivery
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Question by mab3602 on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.