The solar panel is a great item. Folds up to be nice & compact and is very good quality and I’m not worried about it breaking while storing it. It worked immediately as soon as I plugged my phone into it. Being able to charge while on the go by attaching it to my pack is a great additional feature too. As with most solar charging, it’s not fast charging any of my devices, but it does give peace of mind knowing that I can charge my devices if needed. I highly recommend it.