Basically I bought a 60w solar panel from Rockpals to use in conjunction with one of their Li-ion 'generators'. I have found that you can use it on almost any device. It is portable with a built in carry handle and is approximately 1 inch thick. There is a zippered pocket on the back that will hold all the cables and any necessary adapters. Easy to open and adjust, and easy to close and store. I'm not a survivor, but I like to be prepared. This allows me to charge my backup batteries and any USB device! You can also fast charge Samsung and other compatible devices, in my case the Galaxy Note 9.