I have the Goal Zero system, or had, I seem to have lost track of it after the Scout Camp this summer. The panels were waterproof (?) but none of the electrical connections are... pretty weak in terms of weather-ability.
Here's what I got:
http://www.rei.com/product/851177/goal-zero-switch-8-solar-recharging-kitThere's a lot more by Goal Zero now that looks more impressive. I don't think this stuff was available when I bought mine.
The fully charged storage battery would take my iPhone 6 from near zero to around 80%. Then the charging battery would be dead. I believe the solar panel re-charged the storage battery in around 6-8 hours of good summer no break sunlight. 4 hours for full charge from a wall socket. Of course it's recommended that the storage battery not get hot while charging (i.e. don't let it sit in the sun) which is hard to do when the charge cable is about six inches long. Ha. Kinda ridiculous, but I have to say that it did work and I kinda like.
Setting up a waterproof case that could hold the entire package would be a neat rig. You could velcro the solar panel to the top of the case and have the charging wire run from the panel into the case where charging would remain cool and dry. When not charging put the panel back into the case. Should probably market that...
Anyway, your units look pretty incredible. I just cannot figure out how they are getting 20,000 mAh into such a small package.
If you were going closer to midwinter I'd send you my BSD rig to try out Greg. But right now I'm still playing...
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