Perhaps this should go in off topic? --- As the Pandora can charge using either a USB or PSP connector, using it with a solar_panel+battery unit should be quite simple. My question is: given the power output of smallerish chargers (like this Pandora sized one http://www.espow.com...s-foldable.html), the power consumption of Pandoras (especially when charging), and the amount of sun in the northern half of Europe. Is there any point in buying one of these, or are they completely useless. It would be nice to know where the power for my handheld came from (and free up some sockets), but it would be quite a large waste of money if its output falls massively below demand. Anyone have experience with these things?