[Upgraded] BigBlue Ultra-Light Portable 25W Solar Panel Charger with USB-A and USB-C Ports, 0.84 lbs Pocket-Size IP68 Waterproof, Folded Solar Panel Compatible with Cellphone,Power Bank,Camping Light

The BigBlue 25W upgraded solar panel system itself is honestly great. It charges reliably, folds up nicely, feels durable, and performs well outdoors. For hiking, camping, or emergency backup power, I’d absolutely recommend the actual product. It’s lightweight and efficient, and the panel quality seems solid. That said, Amazon seriously needs to get control of its returned-item reselling situation. My box arrived missing 2 carabiners and 1 USB-C cable. Of course, the manufacturer wants you to use their specific cable setup, so that was pretty frustrating right out of the gate. This clearly looked like a returned item that was restocked without anyone actually checking the contents. That’s not really on BigBlue — the product itself is excellent — but Amazon’s warehouse quality control is slipping hard lately. So: 5 stars for the panel system. Maybe 2 stars for Amazon fulfillment roulette. Double-check your box contents when it arrives.

Works great but underperforms. In Full Sun, Noon, Jule 30th in Michigan the most I could get was 14W combined when using both USB A and C ports and with only the USB C port, only 11.1 Watts. It works for me, and is better than my 10 yr old panel rated at 7W that I ly gave me 3W. Just temper your expectations and don't expect 20W or more.

folds into small package, well made. Charged a 10,000 portable power bank in about 6 hours in the sun. Great back up item and small and lite. Highly recommend. Very well made, wish it came in a small case, has an elastic strap to hold it closed, but very happy with it overall

This solar panel works really well! It charges about 1000 mAh per hour based on my very basic testing. I brought it with me on a 3 day backpacking trip, just to test it out. It packs up compact and is very easy to use. The price fluctuates on this product, so I recommend waiting for a coupon or price drop, to get the vest bang for your buck.

This thing is great. I charge my phone and battery packs on it. Even on cloudy days it still charges. In full sun in L.A. it took about two hours to charge a 5000 mah battery. I might buy another just to keep in my truck.

If you want a toy or something to play with or you are base camping in the desert- go for it. If you actually need a solar charger that you can depend on, keep looking. I bought this for a week- long canoe- in camping trip in Minnesota. The weather wasn't great, and this charger proved fairly worthless. I had read prior to going that these are only good for recharging a power bank, not for actually charging the phone or anything you need the charge to, so I was semi- prepared for that. I wasn't, however, aware that it will actually pull power from your phone due to how glitchy it is. My phone went from 28% power to less than 10% in about an hour of being plugged in to this charger in direct but setting sunlight. On the cloudy days it wouldn't even charge the power bank. I did have it plugged in for an entire day one day, babysitting it all day long to keep moving it to stay in direct light, and it brought my power bank from 1 bar of charge up to 4, (6-8 hours) but even then it wasn't even fully charged. It got me enough power to charge my phone to make it home that last day, but overall was mostly a waste of space in my backpack. I would have been better off bringing a second power bank rather than trying to rely on this.

My review is to help you with your choice when it comes to your expectations of what this product is capable of and delivers in regards to its use case and scenario etc. This solar panel works best one of two ways; perfectly flat on the ground during mid day. If it is not mid day your are going to have to prop it up on something to catch the angle of the sun. That means working against the design of the product as it's origami nature is floppy and will want to fall over close etc no matter how well you find something to prop it up against with it. This is a nightmare and you will be screaming. The second is actually using this with the included carabiners on a back pack. Handling it this way is the true second best way to use the product. And don't worry about oh will I be facing against the sun or something. In my life I've come to find that the sun for some reason is always behind me and never in front. So yes more than often it will be catching light by hanging off of your pack. Also expectations about wattage/output. I've owned two. The first one could output 12 Watts while my newer second one can only output 5 watts. While 5 watts is acceptable do keep that in mind. Also the C port doesn't have enough depth. It's like it's it can only accept 3/4 of the C connection. I don't recall this issue on my first unit. So depending on which one you get again my first one didn't do this will probably be falling out. So it's probably best to stick with the A port. All in all I'm pleased with my purchase(s) and am thankful for the back up and life giving opportunity this product has given me.

Used on my himalayas hike to EBC. You cannot find quality solar panels like this in Kathmandu, circa 2026. Buy one before you get to Nepal, and you’ll have power for your cell phone even once you get to the higher villages where they start charging for power use. You won’t need it really until Loboche.

Although less output than advertised it performs competitively to other foldable small solar panels. Its key advantage is in the compactness it offers for backcountry camping. Keeps the small power bank, phone, Inreach, GPS /watch units charged easily with a couple of hours with good, bright sunlight.

Llevaba tiempo detrás de un buen panel solar hasta que me decidí por el Big Blue 28W. Permite cargar 3 dispositivos a la vez con 2 puertos USB y 1 USB-C con una salida máxima de 5V. Es muy ligero para el tamaño que tiene y se pliega perfectamente, pudiendo llevarlo cómodamente en el interior de una mochila/bolsa. Desplegado tiene un tamaño considerable, pero el paquete incluye 4 mosquetones pequeños que hacen que se pueda anclar fácilmente al dorso de tu mochila mientras vas caminando. La impermeabilidad no he podido comprobarla, afortunadamente. Si algún día se diera el caso, actualizaría la opinión. Según las instrucciones de uso, para su correcto uso hay que desplegar los 4 paneles solares, no funciona si uno de ellos no recibe luz, y la luz debe incidir de manera directa. Mi experiencia es la siguiente. Lo he probado con luz directa y he cargado mi teléfono móvil de 4100 mAh de capacidad en 1h 15 minutos. Cargando 2 dispositivos a la vez, la velocidad disminuye bastante, pero aún así la carga de mi móvil y otro de menor capacidad (3000 mAh) la realizó en apenas 3 horas. El panel carga también con cielo nublado, algo que me sorprendió muy gratamente, eso sí, no hay que esperar grandes velocidades de carga en estas situaciones, pero los dispositivos no se descargan como sí ocurre con otros paneles que he podido probar, lo que da mucha tranquilidad cuando caminas con el panel desplegado por zonas de sombra. Muy contento con este panel, una compra sin duda muy acertada.

Ich habe mir die Solarplatte zusammen mit einem Akku für meinen Bulli gekauft. Sie funktioniert einwandfrei. Als Kritikpunkt lässt sich nur die kurze Kabellänge nennen, wodurch ich dazu gezwungen war, mir ein Verlängerungskabel anzulegen. Sehr positiv finde ich die kompakte Größe im gefalteten Zusagen, sowie die vielen Anschlussmöglichkeiten

Funktioniert wie beschrieben. Bei Stahlender Sonne erreiche ich fast die 3A das ist die maximale Ladeleistung meiner Powerbank. Die Powerbank ist somit von komplett leer bis voll 20000mah in 2 Tagen bei Täglich ca. 6 Stunden Sonne ohne Wolken. Ein kleines Problem habe ich aber festgestellt die Ladeleistung sinkt wenn eine Wolke die Sonne bedeckt ist die Wolke weg steigt die Ladeleistung nicht mehr ... dann muss man die Powerbank trennen und neu verbinden um wieder die volle Leistung zu bekommen. Ich vermute aber das es an der Powerbank liegt die nicht mehr hoch regelt. Es ist nicht gerade Sinnvoll beide USB Port zu belegen da sich dann die Ladeleistung pro Gerät aufteilt um beide mit voller Geschwindigkeit zu laden sind die Solarzellen zu wenig. Für mich ist diese Solarladestation von Gewicht und Ladeleistung eine sehr gute Kombination da ich immer die Powerbank lade die voll ca. 1 Woche Strom liefert. Geladen wird 1 iPhone, Go Pro, Taschenlampe und im Notfall das iPad (Das benötig 1 komplett Tagesladung da wird's dann knapp)

Juste excellent. Emmené en montagne pendant 15 jours sans électricité. Nous avons pu recharger tous nos portables, frontales, batteries externes sans aucun problème alors que nous étions 7 ou 8. Léger et très peu encombrant.