20W Small Solar Panel Charger 5V USB-A USB-C Foldable Portable Lightweight ETFE Power Emergency Panel IP67 Waterproof Hiking Camping Backpacking for Phones Tablets Power Bank

Great little solar panel for my sailboat. Chargers Bluetooth speakers and Apple devices when we are underway.

Charging an iPhone Pro went well, but not a Macbook Pro hahah. The charge in was not faster than the charge used on my laptop. But I tested this from inside, so it might do better outside. I like that the ports are on the edge so you don't have to worry about wires bending and breaking with time.

Not sure because of the fact it is foldable, its not super powerful to charge phone. I left for hours in sun light. It's just 20% charged. Can be used for little things. If you are looking for latest phone to charge need better one.

Works better than their e40 foldable panel but I would get another brand

This has proven to be a great little experimental purchase. I wanted to "go green" with my phones, and this has done the trick. It charges well and reliably for its size. You do need to make sure to place it in direct sun as much as possible. It does everything it says it does. Note that you DO need to use backup batteries to get the best use of this product. It does not hold any charge on its own.

This thing charges super fast and was great for the first 4 days of my 9 day trek in Peru. But then it stopped working unless the panels were angled at about a 30 degree angle, and the charge speed was super slow after that! I think there was an issue in the cabling in the hinge. Either I got a defective unit, or this thing just isn’t durable enough for more than a couple days of usage.

I took this on a 7 day back-country hike at Philmont Scout ranch in New Mexico. I was often out of cell range, so had my iPhone 13 Pro Max on airplane mode most of the time. Hanging this from my backpack, it consistently charged my phone from ~70% to 100% in 2 to 3 hours hiking in and out of shade and partial clouds each day. In bright sun, it charged my “brick” backup lithium battery from 40% to 100% in 4-5 hours of bright sunlight. In a reasonably sunny climate, my experience is that this panel could keep personal electronic devices for 1 person charged indefinitely while on a trek. Thumbs up!

Unfortunately, this item is not waterproof as described on the Amazon.com Website, because the USB port remains exposed to elements. The product description states, "20W Small USB Solar Panel Charger 15W USB-A PD2.0 USB-C Foldable Portable Lightweight ETFE Power Emergency Panel IP67 Waterproof Hiking Camping Backpacking for Phones Battery Packs Tablets Power Bank". Not really. Otherwise, the product is well made. I am not crazy about the orange color. I believe that carbon fiber look would make this product look spiffy. I am sure that engineers can come up with a solution that would make the USB ports water resistant. This way, would could easily leave the panel outside, not worrying about the afternoon storm...