This backpack can charge 3 of your mobile devices. - I think they should sell the battery / charger and cables and let us put it in our backpacks. Even add a cheap set of grommets and a tool. How about a solar option too.
August Landmesser was a worker at the Blohm + Voss shipyard in Hamburg, Germany, best known for his appearance in a photograph refusing to perform the Nazi salute at the launch of the naval training vessel Horst Wessel on 13 June 1936