Not as far as I know.
Plug something in and try, it won't blow up.
It's a mini USB socket on the back isnt it? Therefore there will be no output, surely?
I just connected my phone to the usb socket in the r/h glove box. It charges with the ignition on.
That's a relief! I was relying on that but had never tried it.
Can you charge stuff through the USB-port on the Nav5?
Is it possible to use the usb-port on the back to charge other equipment (mobile and such), with the NAV5? (the nav5 being in the cradle, getting power from the bike)