There is a really cool solar charger on the market for about 169 dollars. Look on the Planet Green website, and I think it was on the program “G word”. It has a lot of different adapter plugs to make it charge many different products. Sweet!
Update: I can’t seem to locate this charger on the Planet Green website right now, but I did find a link to another article that talks about solar charges. The article is a bit outdated, but it might still point some people in the right direction. Happy charging!