Will the setup that I have in the pictures below use up alot of battery? I bought the "Lightning to USB" connector. I put my USB directly to it but it game me the problem "too much power is being used" so I plugged in an unpowered hub and it worked like a charm. I was just wondering if the hub or usb will drain the battery. I have them on my Mini on the picture but I'm probably just going to leave it on my 4th Gen iPad at home cause I wouldn't really want to carry all that extra accessories on the road. I have also have walking dead running through the USB, I didn't copy it to the iPad, just playing it on the USB.