This may be a silly question. I have the Dual GPS, with Bluetooth connect to the iPad. The instructions for the Dual state to use the USB port from a computer to charge the device. Not always convenient to drag the computer around. I was on a popular pilot shop web site and saw a wall plug in charger that has a double USB outlet, advertised to charge both the iPad and the Dual GPS at the same time. That made me wonder if one could use the iPad wall charger to charge the Dual GPS. I'm assuming (yes, i know) that if this advertised device can charge both, then the iPad charger should be able to charge the Dual. Has anyone looked into this? (I can't find the output for the iPad charger, tiny print and can't read it, but dont think it's written there) Thank you.