I love the idea of charging my phone and other small devices with solar power. So, here is a Wirecutter article on doing that. One thing I learned is that you generally want to pair your solar panel with a battery so you can charge the battery during the day, then charge your phone all night. Otherwise you would have to leave your phone sitting near the charger for several hours during the day, which is probably exactly when you want to be using your phone for other things.