@seanyseansean @gendx @EUCommission The factsheet (here: ec.europa.eu/docsroom/document ) has that information. For a charger to be "fast charging", it must be USB-PD-compatible and supply at least 25W.

There are cable differences between compliant USB-C cables!
To support higher voltage and wattage, the cable must contain a negotiation chip too. Maybe the vapes require that.
It's often not clearly labelled, but let me see if I can find the video on it that I saw a while back.

IIrc, there can also be differences where a cable contains/doesn't contain some of the fibres used for power delivery.

Edit: Here's a similar video that appears thorough: youtube.com/watch?v=eYYjzLdKfe
I'm probably going to buy one of these too. I have a ton of cables I don't know the details of.