Meet the Rolopower: a smart carry-on with a built-in generator to keep your gadgets charged when you are on the move. It has electric generators in its wheels, so it will generate and store electric power as you walk. The wheels rotate to allow the generators to produce and store power for your smart gadgets in the internal battery. You can also recharge the battery using an external adapter.
Rolopower has a phone holder to keep your phone protected. The companion app lets you check the internal battery level, distance covered, location, and other useful information. Rolopower has a button that lets you see the battery level at any time. It will be available in various colors. You can find the product on Indiegogo.