Battery Charging in the Field
In this photo I have my Nomad solar panel attached to my Arcteryx day-pack.
This folding solar panel is charging my UV-3R/Mobilinkd TNC attached to my pack as shown in the photo.
Click on the photo for a closer look.
For a description of this solar charging system..... http://www.jerryclement.ca/HamRadio/HamRadio/i-6253Dpv