ELECOM NESTOUT Portable Solar Panel, Dual USB-A Ports, 28W Power Generation Charger for Phone Camping, Durable Water-Resistant Ripstop Nylon, Foldable Lightweight, Adjustable Stands (4-Panel)

Dependable.
Great quality, compact and foldable, even through light clouds it has good power output. Will charge from inside vehicle window. I use it for phone and drone batteries.

Very handy and simple to use
I have several portable solar panels for different occasions and purposes but, the one thing that separates this one from others is the handy pouch to carry a battery power pack and cords. This 28W panel is also compact enough to strap onto a backpack or place inside. With backpacking, any added weight is not desirable but, if you’re going to be roughing it for a few days or more in the wilderness and need a power source, then this would be a good contender. BUT, if you are going to be where there’s going to be an issue with having enough direct sunlight for effective solar charging then maybe taking several power packs would be more effective and logical. I like this solar charging panel and its portability. The output reading is bright enough and easy to see how much sunlight you’re getting and it does have two USB slots for dual charging capabilities. The only thing I do not like is the lack of a Type C port. I’m assuming it has to do with the type of solar power converted they’re using so it’s not a deal breaker for me. Hopefully they will come out with an updated version, which I would gladly buy IF it’s not too much more expensive. Overall I like this portable solar power charging system and the quality of the design and materials is pretty good. So, if you’re into backpacking, hiking, camping, or prepping then I recommend it. Other than hiking and backpacking, this panel is also part of my bug out gear list. You never know when you gotta make a run for it…

Good rugged and portable solar charger.
Charges devices quickly and is rugged and portable. Only issue I had was overheating the battery when charging in hot temps. Placing the battery under the solar panel helps but it still can overheat.

Slightly hefty for backpacking or bikepacking / bike touring, but extremely well thought out.
It’s everything all the other 5 star reviews state, but one thing that was not as accurate as it could have been was the claimed weight. I weighed it on my precise digital scale 870g vs the stated 771g. So it does feel a bit hefty for backpacking and bike touring. That said, I don’t I’ll ever run out of power again given the total surface area on the 4 x solar panels. There’s a lot of solar panel here for a portable unit.It’s incredibly well designed, in Japan, although it’s made in China, so hopefully it’ll hold up in on the trail and on the road. And for the price, out of the box, it seems like a good value. Also, as noted, it holds perfectly the 15k battery (or any brick in that size category) with a protected, zippered pouch. Thoughtful!

Abit pricey but it’s good quality and works really well

Ottimi materiali, perfetta manifattura ed efficienza. Sole di dicembre, poca.incidenza.e.ricarica da 2,4A….direi molto soddisfatto

I’ve been looking to purchase a portable solar panel for a while now, have finally pulled the trigger on this ELECOM 28W model.- Clever Japanese design (made in China), built-in multi angle stand with printed diagrams on the back of the panels. See picture attached.- Unique olive green color in ripstop nylon fabric. Better than black that absorbs more heat which can lead to inefficient solar panel performance.- Works as intended, charged phone from 68% to fully charged in around 1 hour and 35 minutes. No clouds.- Perfect to charge phones and power banks.Note comes with manual in Japanese only. But a product like this is not hard to figure out.ELECOM customer service also confirmed this has auto-reset function.Glad I waited to find and buy this product.