25000mAh High Capacity: Built-in 25000mAh Li-polymer battery, it can charge your phones 8-10 times or tablets 3-4 times for an average of 9 days of usage per charge. 4 Solar Panels: With 4 foldable high-effeciency solar panels, up to 1A input current under the sunlight, which is 4 – 6 times faster than the other solar chargers.

https://www.amazon.com/25000mAh-Hiluckey-Compatible-Smartphones-Waterproof/dp/B07FMFGGNR