Solar Panels Charger with Digital Ammeter, BigBlue 28W SunPower Camping Solar Panel, Dual USB(5V/4A Overall), IPX4 Waterproof, Compatible with iPhone 13/11/Xs/X/8/7, iPad, Samsung Galaxy, Google Pixel

Muy buen producto, carga muy bien, exelente producto! Lo recomiendo!

Despite being on the heavy side, this solar charger works very well even on slightly overcast/cloudy days. It charged up my Iphone 15 Pro Max, and my old 2017 Macbook pro well. It packs up well and fits its case, but it's a bit heavy especially if backpacking or taking on longer trips off the grid. So far, I am very pleased with my purchase and it lives up to the hype of being the best solar charger on the market as of February, 2024 in terms of charging, reliability, and size. I would highly recommend it and wouldn't hesitate to purchase it again in the future unless a different model with higher specs and reduced weight is offered.

Excellent performance

The first thing I noticed on unboxing is that this panel folds down very thin and more neatly than the previous charger I was using, which was a 14 watt made by Anker. This one is virtually the same size and has a very neat and thin feel despite the somewhat thick built-in ammeter, which is the main reason I chose this one. The second thing I noticed is that it had 'new car smell' which faded quickly but was nice. The pouch seems well designed with a good quality zipper with a rubber pull nub and elastic straps inside. I don't intend to use the pouch often but it's good to have and is convenient for storing cables. It came with a short cable and I supplemented that with some very short cables and a longer one for charging my phone at a distance so I can stay in the shade. The little hanging loop between the four panels and ammeter/pocket section is very handy for hanging it in a window early or late in the day.The main reason I wanted this product was to charge devices while staying at a mountaintop cabin which turned out to be a foggy and overcast weekend. Before heading there I tested it in the field on a couple of small islands and at home on a day when there was full direct sun with no clouds. On the islands there were some clouds and I only hooked it to some power banks I use while traveling. The charger is very easy to stow. I slipped it into a 2 1/2 gallon zipper bag, which could hold two of them or one and my large tablet, and folded it over as protection against water while heading there. It was easy to rig. Just propping it up on driftwood is easy but the carabiners that came with it don't seem especially useful. I carry some short loops of bungee cord that are handier for hanging it up. I don't intend to lash it to my backpack as I know some hikers do. Where I hike there are generally trees overhead and inconvenient sun angles. I've tested it in overcast conditions and it still puts out a few tenths of an amp without real direct sunlight.The ammeter is very handy and eliminates the mystery of whether something is really charging and how fast if it is. I notice that in full sun the amps being delivered is highly dependent on the device(s) connected. Some of the older power banks I have don't seem to accept more than half an amp at a time no matter the level of sunlight so even with two depleted banks connected the current only goes to 1.0 or so. With a different pair of packs it goes to 2.0. While testing the charger in full midday sun for the first time I hooked up a large tablet that was down to 28% and with one of those banks the current went to 2.4, with a different one 2.8, and it charged in less than two hours along with the power bank. This was using a short charging cable with the tablet in the shade. Don't leave your devices in the direct sun. I'd generally recommend not using the zipper pouch in most cases too. It gets very hot inside but in some situations you could hang the panel by the little loop in the fold between the pouch and panels and have the pouch facing away from the sun.The red LED display is a bit hard to read in sunlight. Maybe green LEDs or an e-paper display would be more readable. That's literally my only gripe with the thing. A bluetooth device with an app that graphs the charging curve and pops up a notification when something is done charging would be nice too but I think I ask for too much. Overall this is well worth the price and a five star review. I intend to use it for years to come.

The design is very good. It consists of 4 smaller solar panels sewn onto the fabric template, which can then fold nicely into a compact package with a Velcro closure. The charging ports also have water-resistant rubber seals to prevent water from seeping into the charging ports when not in use. The design seems as though it may be reasonably resistant to damage, given its modular nature and rubber seals. But obviously I am not gonna try to damage it, so I don’t know how true this isI tried it out, and it was able to draw a tiny current of 0.3A under poor sunlight conditions. I have no benchmark to compare whether this is good or not, but at least it worked during my short test trial. Will only know whether it is really that good when I bring it on a hiking trip for realDelivery was very late and delayed. Very bad on that. But I am not sure if Amazon should be blamed for that instead. In any case, the product itself was good