Where is the Solar in Solar power?

So J and I got our Solio  solar charger!  We actually purchased it from a guy in Wrentham.  We figured since this is all about recycle, reuse, restore - or whatever it is - we might as well buy one off of someone else. Turns out he had never used it and we got a good discount.

Here we are, a year and a half out from our trip, with our  Solio , driving down the road so excited to charge something, anything, phone, ipod - and the sun is nowhere to be found. Hasn't been around for days. No Solio charged from the sun, only the wall socket, which seems to defeat the purpose.

Isn't that just a kick in my recycled pants?