Note: The PowerFilm solar charger:

1) Is compact, lightweight & folding with soft/bendable solar panels (ideal for travel and throwing in a bag).

2) Trickle-charges from the panel to 2 AA Sanyo Eneloop batteries internally, which then discharge at 5V to the USB port. -- This means you can decouple sun collection from device charging, store up whatever sunlight happens to be available at the time, and use it later when you need it.


I also just noticed that there's a new model out w/ 6 folding panels instead of 4, and takes 2-4 AA batteries instead of just 2. Looks like roughly double the double charging capacity for about the same weight as the old model. I think I'm going to get one :

http://www.amazon.com/AA-Battery-Sol...ef=pd_sim_sg_5