It is my understanding that gogo needs to be operational for the power to work. I would say I am at 75% w/power & gogo on the MD 88s. Two weeks ago I was told by the FA via the capt, that gogo does not work over lake erie.
But the other question would be how many Amps does your devise require I think the output is only a few amps. If you require more it will trip the breaker.