Originally Posted by wind_magic
Land, you mean parallel, not series. If you run two of those panels in series it'll up the voltage to 24 volts and you probably don't want that, what you want is more amps, not more voltage.
If you want to start getting creative you can check into just buying solar cells and wire them up yourself, not hard to do and a lot less expensive than purchasing panels. Buy 'em by the case ...
Ah crap I didn't think about that! Yes series wouldn't work then... I'll look into the bulk panels... That would be a fun project perhaps.