I can see the value of a solar charger in a base camp, since you can choose a good location in the sun and let it trickle away all day. The pics you see of people hanging them off their backpacks are mostly marketing IMO; the panel will not be getting direct sunlight much of the time.
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.