Thanks for the info Kirk. Looks like you could charge 4
P4P batteries per day with the larger kit. Unfortunately those panels don't look too portable.
I'm planning a trip across the Pacific late this year, and am hoping to visit a couple smoking volcanoes (among other things) that includes a couple days of hiking through dense rainforest with "paths" that are virtually invisible and often suspended on several feet of decayed underbrush--so having your foot fall through (what appears to be solid ground) suddenly up to your crotch makes the hiking a little more challenging--something my heavier frame tends to do, when my lighter friends walk unfettered in front of me. I'll be away from any power sources for days at a time; though there are some villages that have made their own hydraulic power supply, by welding steel plates on wheel hubs in mountain streams--with a generator running power through some large capacitors and 240V 50Hz voltage regulators that they salvaged from abandoned mining equipment from a mine that was shut down suddenly almost 30 years ago. But, I digress.
I suppose my only option is to take a boat load (by plane) of batteries with me--or find some decent flexible solar panels I can roll up. I've seen the latter sold for charging cell phones... but they don't have the power needed for charging Phantom batteries. Anyone have any good ideas?