how should i be making an USB solar charger? Answered
i have a 12V solar panel lying around, and want to make an USB charger with it.
i've looked around, but i cant find anything with the same specs as i have...
anyway, i want something that i can put indoors overday, that charges something (batteries?) and then that something charges my MP3 player overnight.
what is the best way/instructable to use?