[parkher]

I guess, it is a solution worth considering. But I'd rather have a cable hanging from the top of my upside down Note. I never switch wi-fi on on any of my e-readers, so I didin't even think of it. Thanks.

Perhaps it is possible to open up the Note and to connect 5 v to the usb port internally.
If I understand correctly that that what is missing.
There surely must be some pins with 5 v inside it. That would allow to add a compact right angled usb c otg stick (if they already exist - such micro usb stics - do) instead of a cable.