Earlier quoted context omitted.
> My usb-c ecig won't charge from that Sounds like a "Fake" usb-c. Actually not fake because the usb-c is the connector, not the standard behind it So I'm not surprised it doesn't charge, it's a "pretend USB-C" thing from China
Sure, as a technically inclined user, I can understand that. It actually is a Chinese brand, but not some one-off brand bought off Ali Express. It's a device bought from a reputable store in France with a name that I've seen around for several years (Vaporesso). Sure, that fact, in and of itself, is not enough to guarantee that corners haven't been cut and that the product is actually up to spec. But, as a random con…
To prevent this, a USB-C charger is only allowed to provide power on the cable once it senses a downstream device on the other side. A legacy USB-A to USB-C cable always applies power, though, as this does not provide any danger.
Some low-quality brands think they are smart and leave out the two $0.001 resistors needed for the device to advertise itself. This means it will only work with a USB-A to USB-C cable, and not a real USB-C charger.