I'm not sure how the N30 power supply works, but I've had some experience with modified sine wave inverters. I recently bought a pure-sine wave inverter so I could not worry about buzzing or poor performance in fans. If the N30 charges through a "wall wart" transformer, I would suspect everything should be ok. The charger might buzz more than normal, but it should work. In the worst case scenario, the transformer would have a reduced life cycle because of the abrupt changes in voltage. I've also heard that switching transformers don't like modified sine wave inverters as much. I've charged my laptop (switching transformer) many times with a modified sine wave and nothing has happened yet (it works correctly). You'll just hear more buzzing.
One of the reasons they say not to use modified sine wave inverters with power tools, is that some use the 60Hz sinewave as a timer. If the N30 uses this method to end the charge, the charger device may not end the charge correctly. Something with because the modified sine wave is not a real sine wave. It simply turns on 120v (rms), stays at zero for a moment, then turns on -120v(rms) at 60Hz. The N30 charger may be confused by it.
But anyway, I dont know how the N30 charger works ...so yup.
If its a wall wart charger, your fine! Let me know how it works!
-Robby
