EnginStar 100W solar panel went on a few hikes and was also used here at home. to hold the device well when closed - Stable feet - Fast charging via USB. Dislikes: - Unfortunately, the maximum charging power is 58W. The panels were clean and aligned exactly at noon when the sun was overhead. This measurement was taken using a Jackery Explorer 500. Quite heavy. Only a few reviewers have seen wattages close to the 100 watt rating. Others are closer to 50 watts. I'm not sure if this is a quality control issue or if the device is overpriced. In any case, you can look elsewhere if you hope for power > 75 watts.
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