BurbMan wrote:
Worst case you would fry the charger, not the device. PSW matters when you are powering 120v electronics like TVs, etc. I had one TV that would not power at all on an MSW inverter, the other one worked fine. Go figure.
For small charging needs like phones and tablets, you could probably get by plugging the inverter into the cig lighter port by the antenna booster.
Honestly it might be more efficient to forget the inverter and use one of these:

Now I feel like an idiot! I looked at that plug in the wall plate and wondered what the big hole was for, it never occurred to me that it was actually a cigarette lighter plug. That is a much easier solution, just bring in one of the cigarette lighter chargers in from the car and charge away...
thanks