I am using a Note 4 - I know it is not on the approved list.

My tablet appears to be charging via USB off the RC battery.  The other day the tablet finished a one hour flying session awith 5% more battery life then when it started (I had started at 49%)

It doesnt seem to be causing any issues. Just wondered if anyone else had noticed this.

I think it does charge a little.. Not noticed any benefit on an iPad though.

The controller is a "USB Host" device, so by spec it must supply voltage.