The first generation of accessories were pretty much limited to power charging stations for your home, but the wireless charging market has expanded into lots of new product segments since then. (androidauthority.com)
Make sure that your device's battery power charge level is over 50 % as that will prevent it form powering off in the process. (android.gs)
Critics of solar power charge that conditions for optimal solar energy production are rare and that even then, the conversion of solar energy is less than ideal at about 15 percent efficiency. (scientificamerican.com)