Re: Charging IBM laptop from car
There might be some sort of voltage regulater you could find. MOST laptops could actually be plugged directly into the cigarette lighter with a simple cable going from that to the laptop seeing as they run off 12v DC, but don't hold me to this as I don't know the specs on yours.
An inverter should work, but I have heard that you arn't suppose to plug stuff such as laptops into them. I know when I plug my laptop into it(which is a different laptop that draws MUCH more power than a standard one, but less than a desktop) it works, but the power supply buzzes a bit.