Powerology 20000mAh Solar Wireless Charging Power Bank - is an ultimate portable power source that provides complete energy independence in the wild and during camping thanks to its high 20000mAh battery capacity, built-in solar panel, and wireless charging function. This model can independently gather energy via sunlight, and thanks to its integrated wireless charging platform, it offers the convenience of quickly powering your smartphones without needing any cables. Its rugged, ergonomic housing structure built for harsh outdoor conditions and the integrated smart protection system fully safeguard your devices from overvoltage, overheating, and short circuits.