I guess we are not seeing this the same so I will make my last comments on this.

These desperate people are refugees from Syria, South Sudan, Iraq, Libya and other war and politically torn countries. I would doubt that before they fled their homeland that they really thought about how they were going to charge their phones or batteries while on the go or when they hit Europe.

Also I would doubt that most probably do not have the financial means to be purchasing any on the go charging options before they fled and when they arrived in Europe. Even if they had the means, the many options mentioned here in this thread are very niche, not readily available even in Europe or for that matter here in NA.

For example, I live an very large Canadian metro area and I can only think of 3 outdoor oriented store chains that carry any type of good quality backpack style solar panel setups. Of those 3 stores, only one has a real good selection on hand, the other 2 would probably order if you asked. The only other option would be Ebay or Amazon.

For those people fleeing from the many global hot-spots mentioned, I don't think that visiting a local outdoor store or ordering from Ebay nor Amazon is an option...

Finally, for those here. Do not discount making your own backpack solar setup. I made this proof of concept last year for <$20.00. The panels were ordered from Ebay. The case is an old DVD case with the DVD sleeves removed. I already had the wire, wire loom and Schottky diode. In real good summer sun, charging amps is just only about .7 amp. Voltage can hit just under 14. This setup will not charge a phone but can charge a couple of AA batteries at a time, albeit slowly - which is better then none.

Now that the cost of mini flexible panels have dropped, my winter project is to make a 7-10 watt foldable panel setup for <50.00.