ORIGINAL: OliverJacob

I used one of the cheap 2 stroke generators, it hat 1000 Watts and worked ok. But I would never run a computer or expensive charger to this.
Even if it puts a out a real nice sinus wave (which it doesn't) then you are still dealing with power spikes when the load changes.
The carb got gummed up fast, was hard to start and the engine seized after a year of no use. Used good quality 2 stroke oil, 1:25.
My opinion - get a good size car or truck battery, charge it at home and you'll have enough power to fly all day. Yes, it's heavy and bulky, but so is the generator.