Re: Fuel cells: I found this one: http://www.fuelcellstore.com/products/fuelcell/mini_fuel_cell_info.html If the performance data is not too enthusiastic two of these in series and a Maxim voltage upconverter will run most PIC projects even with small motors and (LCD) displays attached. Should run fine on moonshine or vodka (cheap alcohoolic beverage) if the KOH is prepared with a higher concentration from start. Small robots that are booze dependent ;-) Peter -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics