I made this solar generator to power lights, a radio and recharge batteries for my trip to Burning Man 2008. Parts list: 1. Sunforce 15 watt solar charger with with 7 amp charge controller - Kragen Auto - $99.99 part #50033 2. Pro X One 800 watt power inverter - Kragen Auto - $49.97 on sale - part #64009624 3. Nautilus Gold 24 NG24 deep cycle battery - $84.99 - Kragen Auto - part #6228613 4. 12 volt outlet (cigarette lighter type) - 10.99 - Kragen Auto - part #6261044 5. Digital multimeter - $2.99 - Harbor Freight Tools - part #90899 6. Crimp style electrical connectors (butt and 3/8" ring) - $2 7. 1/2" plywood (or whatever you have lying around) - $10.00 8. Hinges, handles, latches and screws for the box - $15.00
http://www.instructables.com/id/Solar-Generator/