An extra battery with an inverter would work fine, and if you only use a
laptop it should last a full day.  Driving the van for an hour or so should
charge the RV battery back up enough to run the laptop for many hours.

This would be a lot nicer than a separate generator.

Depending on your laptop, there may be a 12VDC cigarette adapter/charger
available that would be more efficient than going the inverter route.
Check http://lindelectronics.com/
They sell 12v adapters and high capacity laptop battery power packs that you
could charge up in your house or at a campground, cafe etc.

You could also get a newer, more fuel efficient laptop...

on 10/10/03 10:35 PM, jennifer dumpert at undine@HOTMAIL.COM wrote:

> My big problem, however, is that the battery on my laptop only runs for
> about two hours. To really make my Westfalia a reasonable mobile office, I
> need to be able to power the computer (24 volts, 1.875 amps) for at least
> five or six hours at a time. I have considered getting a deep cycle battery