I could see that with some fans and/or chargersyeah...thought of that.
if u read up on that situation, the reviews say that the fans draw power quicker than they charge.
Are you giving me the voice of experience? If so, please advise which brand u used.............thanx
I could see that with some fans and/or chargers
I do this and it works all day long for us
The Fan we use: https://amzn.to/2DbyUAI (this appears to be an updated version, but note it says it can be USB powered not only usb charged)
When its plugged in and charging it wont spin at full speed though, I would say about 75 percent but that is more than enough.
It works with both our chargers an old anker charger and a cheap one we got as a free gift through one of our memberships.