Review on ECEEN 20W Solar Charger Portable Panel With 2 USB Outputs, Waterproof Foldable Phone Charger For Camping Survival Gear Emergnecy Kit, Tablet GPS IPhone Camera & USB Devices by Amy Meurer

This package is exactly as convenient as I hoped it would be. It's light and doesn't seem fragile, though I have yet to really test its endurance. The USB port is conveniently hidden beneath a pocket on the outside which works as a great storage space of cables.The charging is very consistent, and only seems to stop working when it gets too hot (ironic for something you're supposed to leave in the sun), however, it only overheated in enclosed spaced like in a car. I would recommend leaving it in a place with plenty of airflow and you should be fine.Power depends on sunlight and angle, as is expected, but I with maximum flux I can charge my iPhone 7+ about 1% per hour while powered on. While that seems slow, it's a great solution if you have somewhere to leave it all day, without needing any grid electricity.The case is nice, the zipper is sturdy, and is slim enough to slide in a backpack without taking up too much space.