USB Stuff

[AdrianJones]

I have two separate questions but they kind of relate to each other.

I was bought a Overlander RC-6S charger for christmas. On the side it has a receiver plug type port which says temp/USB. I have tried searching the interweb and cannot find what or how to use the USB port or even if it does anything at all!?

I also have a Muchmore CTX-D discharger which also has a ext port which is supposed to be some kind of USB connection but again cannot find anything about this on the interweb.

Can anyone shed any light on how to use these ports or even if they are used at all!?

Cheers guys