Hello: I wanted to know if someone knows what the micro usb port is used for that comes with the battery charger hub thank.

Hi. Thank you for the inquiry about the DJI Sparks battery charge hub. You can use the USB port provides power to mobile devices such as smartphones and tablets. For reference, I will be posting the DJI link for the DJI Spark Portable Charging Station.

https://store.dji.com/product/sp ... lete&position=9

The micro USB port is not of any use, yet.
It's told that DJI wanna use that, maybe, in the future for firmware updates.

Are you asking about this one?

'couse that one sure isn't for charging batteries.

if that is the port

djiuser_UqrLdLQqmzHC Posted at 2018-7-22 15:26
if that is the port

Hi, I would like to ask if you can provide the screenshot of what specific port that you're asking so that could clarify it for you?