For the solar charging stuff you have to buy really high quality panels. The cheap options are still pretty crap. Goal zero is good. I have the 6.5W version of this solar set here.
It provided me with energy for all my electronic devices (tablet, gps, smartphone) during several multi day hikes with mixed weather. I just attach it to the top of my backpack and it fully charges my smartphone during a day walking.
Alea iacta est ("The die has been cast")