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This is a really simple tutorial on how to make a solar charger for your MP3 player. This won't work with an iPod touch (The iPod ignores it, it's not an apple product), but should work with most generic players. I use it for my CreativeZen player.
I bought my solar cells HERE
. It's the best prices I can find, plus free shipping!
This panel charges @
.8 amp to 1 amp; in full sun
Because MP3 players have built in battery savers, there is no need for an electronics board or battery sensor. It's physically impossible for the solar cells to spontaneously produce a higher voltage. If the voltage drops (for whatever reason) the MP3 player automatically disconnects the battery.
MP3 players automatically disconnect the battery before it overcharges
MP3 players will not discharge into the panels, they have built in diodes.
Putting it simply, the very worst that could happen is that it won't charge the player.
But I still have to say: do this project at your own risk :)