22 April 2008 - 3:30Earth day

Ted gave me a field guide to survival, recently, so now all I need in life is a solar panel (and maybe parkour skills). Anyway, solar panels seem to require a lot of research and I’m not sure where to start.
Someone’s selling a secondhand solar panel on Craigslist. Is this a good model?

I’m concerned that I’ll shell out for one, hang it in my window, and then find that I can only power half my laptop for three seconds. How do you get a sense of what they power and for how long?