I charged by iPhone 11 from 13% to 95% in just a few hours with the Nomad 5. The panel had direct sunlight for almost 3 straight hours and I was very pleased with how quickly the phone charged. On the other hand when cloudy it can take an entire day to charge. On days with large passing clouds directly over the sun I could hear the phone charging noise turning on and off when large clouds would block out the sun for 30 seconds at a time. Overall I would highly recommend. Very rugged and light weight. I dropped it directly on its corner day one and it took it like a champ.