February 26, 2009 20:05
I have been using a 175 watt 12VDC => 120VAC that was bought from West Marine a few years ago on many different laptops with no problems. Years and Years ago there was a lot of electronic equipment that was fussy about the AC wave form, and inverters were much less sophisticated. My experience is that the fussyness is almost all gone away. However, this is a good question to be asking, just on general principles.