I too have been researching the same need...<br>I found a couple units made by Brunton (the compass guys)<br>they make two units... one for just charging AA batterys and the other will also power other 12/6 volt devices and charge 4 AA batterys too. They both look very well made and are nice and compact... they even include storage for extra sets of batterys.<br><br>To find a source just do a search for "brunton solar AA"<br><br>Good luck on your search...