Add a battery to a USB Webcam?
So what I am doing is extending the cable of a webcam and the computer no longer recognize the Camera. So everything I have found suggests I use a power USB hub to give it the extra oofh needed to make the distance. But what I am doing makes that not possible because I will be outside far from any outlets. What I plan to do is place a battery on the camera is self and only transfer the data of USB. My thoughts were to connect a battery to the power lines of the USB cable but the Diagram says that red is DC, that's fine but the black is listed as a GROUND. That implies I couldn't just hook the negative the the black wire. Is this so? If it is how could I complete the circuit?