[quote name='BigNick'][quote name='Cornfedwb']I can't imagine a $20 power inverter working for running your Xbox. There are basically two types of power inveters, cheap ones and quality ones. The cheap ones do a very poor job of actually converting from DC to AC (they're not trying to change from 12V to 120V, thats just what happens in the meantime).
You should never ever used a cheap inverter on a sensitive piece of electronics (i.e. Xbox). They aren't reliable, you'll get peaks, drops, surges, etc as the charging system of the vehicle takes more and less of a load. They also don't use sine-wave conversion which will give the Xbox a very rough power (and very possibly do damage).
We hooked a computer in a vehicle many years ago as a portable MP3 player (this was before you could buy any sort of MP3 player outside of a PC).. we went through 3 power supplies and actually caught the thing on fire once just by using a cheap inverter.[/quote]
The coleman one I have ran my laptop and charged 3 cell phones at once. Its MSRP is 40, but is $20 at a lot of places. You can only use up to 150 watts with any converter through the cigarette lighter, any higher, and you have to run off of the battery.[/quote]
Well... that's wrong. With a good inverter you can run up to 750 watts through the cigarette lighter actually. Why you'd want to, I don't know.
And trust me, buy a quality inverter or you're just begging for trouble.