This new shield offers a quick solar shield for powering your Arduino Duemilanove. It has a 2.1 W solar panel.
They're now offered on our website at:
http://www.dexterindustries.com/Arduino-Solar_Shield.html
I presume it's just feeding into the Vin pin so there is no backup if the sun goes behind a cloud ;D
Mowcius
I don't think that it would be that hard to build a small battery charger for it, but it would be nice if there was one on there already.
Correct, there is no backup if there are clouds. And yes, the power goes straight into the Vin pin. It might be something we have to think about in the future. We used this for datalogging outside, to just record and store environmental data. With a battery, much more could be done.
Yes, i agree. This is what i am loking for... an AA charger bateries to backup the solar pannel. It could be nice to have a device (solar panel and shield) to power the arduino and charger the AA bateries for the night or cloudy days, in order to have a constant environmental datalogging.
I will follow your next versions!
Good job!
And yes, the power goes straight into the Vin pin.
What is the maximum voltage?
On a sunny day I would have thought that with it being at its highest voltage and the ambient temperature not being too cool you might have problems with the regulator temps.
I think that this needs to have it's own regulator setup and backup battery. Then it would be just right 
Mowcius
I think Mowcius is right.
In fact, this is my pain now with my project. I am trying to look for a solar panel regulator circuit and a battery charger in order to put them together into an arduino' shield including the backup batteries...
Nice to think that i am not in the wrong way in spite of my null knowledge of electronics!
Hey madepablo, I think I might be able to help.
We do Open Source Hardware at Rachel's Electronics, and are going to be introducing the new SolArduino at World Maker Faire here in New York this weekend. We'll be selling a limited number of kitted prototypes for early adopters at the Faire. I'm holding back to post a new thread about it here until tomorrow, because I will get the prototypes from barebones in the morning and want to have pictures of the first populated SolArduino 
This inital prototype was designed around low power remote sensing applications, but with the right battery/panel combination, we feel that robots are not far off.
In the mean time, I have lots of documentation of the circuits and process at Rachel's blog. Link below.
Hi Rachels Electronics,
Thanks so much.
I know your webpage, In fact i send an email to you through the contact form.
Sounds great your prototype. I will take a detailed look to your circuits.
Cheers,