Solar Charger-20000mAh high capacity allows to charge your devices multiple times. The charging times of solar power bank have been extensively tested. Itself can be fully recharged around 13hours with 5V 2.1A adapter. It can charge phone X up to 4.5times,Samsung Galaxy S8 up to 3.7times, Pixel 2XL up to 3.6times and Macbook pro with touchbar 13in up to 1.0time.Combined QC3.0 and power delivery fast charging tech, Allows to charge your phone with max 9V=2A/12V=1.5A/18W charging power,It will pair your devices the most appropriate charging results, Greatly shorten your charging time.