BigBlue Portable 25W Solar Charger [Pocket-Size], Folding Solar Panel with USB-A and USB-C Ports, IP68 Waterproof Solar Panel for Backpacking Compatible with Cellphones, Tablets, Power Bank

I went to france carp fishing for a week last year, I had multiple power banks and lots of other bits that i needed to charge up whilst over there including head torches my phone and camera batteries etc. I bought this just in case I had issues with the power banks etc. due to being isolated in the middle of nowhere. This thing is seriously great, I used this to charge my head torches and phone every day and even my smaller power bank, in decent sunlight it charged my headtorch and phone to full in a few hours. therefore leaving my power banks to charge my other bits and bobs. It is honestly brilliant, I have sold all my carp stuff as I just decided It wasn't for me anymore, however i have kept this, I use this whilst hiking, camping or just at home in the garden and its sunny and i need to charge something, after all who doesn't like a bit of free electric. If you are outdoorsy and are looking for a decent tough solar panel that can get some charge back in your phone or other tech then look no further. It also has studs in each corner of the panels when folded out and comes with clips to lay this out etc. or fasten it to anything if you wish, I have attached this to my rucksack whilst hiking with the clips and its charged stuff no problems. Folded down it is around the same size as an a4 piece of paper and the thickness of a book. If you are thinking of getting one, then don't hesitate they are blooming brilliant!!

This is now my third purchase of this type of product . I can tell you , this one is the BEST so far. As for its charging ability all I can tell you is that I use it on Mediterranean holidays , in the height of summer , with full sunshine all day. Charges my 5,000mAH phone battery to full in 8 hours.

Pros: -With solid sunlight, can charge a phone, and/or similar device, from 0% to 100% within a few hours(Depending upon your Milli-Amp capacity). -3 standard USB ports for charging which can be used all at once. -steel rings to attach clips to, quite durable. -Good stitching and build quality. -LED to display charging potential(Though, this can be deceptive, since it only means it has detected light, not that there's ENOUGH light to power anything except the LED.) -Rubber cover for USB ports when not in use -Charging controller and USB ports are within a pouch, so the device can be left on charge in a container. Cons: -Power supply various dramatically with sunlight degree. a drifting cloud will reset the charing on the phone, turning the screen on. So if you have a 1-minute screen idle before it turns off, and you're charging on a cloudy day, your screen will keep turning on and off because the charge will vary, reducing it's effectiveness. (I suggest leaving the solar panel connected to a power bank and charging your phone from that to prevent this). -Weight is on the heavy side of things considering, but this isn't as bad as other people are making out. -Under direct sunlight, can get warm. Doesn't get too hot though. Conclusion: This is an excellent solar panel for the price. It is portable, though slightly heavy. Thanks to it, and with moderate sunlight, have been able to charge a very big power-bank(26,800mA) within a few days. I have not needed to use a wall socket to charge my 7-odd USB devices ALONGSIDE charging my power bank. I have more power than I need thanks to this panel. So, if you need to charge phones, game controllers, Bluetooth chargers etc, this will do so long as you have good sunlight. If you have clouds, you will have trouble. For the price, it's a good product.

The charger is really great. I was skeptical, but actually it works perfect. It tooks approximately 2 hours to fully charge my Iphone 14 pro at the full sun. I'm very happy with it.

I bought it in winter, but it still works just fine for me! I can charge up a tiny power pack (10,000 mAh i think) on a bright sunny day and that captures enough sun to charge my iPhone, bike lights and bike Garmin with ease and some charge left over for a 2nd iPhone recharge. If I place it in the sun early morning then, with bright winter sun, it fully charges my power pack. Image how effective it’ll be in summer when I’m out and about on the bike! Tip: place outside for full solar capture. Indoors, behind my small window panes, it can struggle to produce full charge. I’m lucky that I have a south-facing roof just below a bedroom window. I don’t even need to turn the solar panels to follow the sun. Four stars for transportability as it does add a tiny load, but that’s more than offset by the effectiveness of the charging capability.

We are very pleased with the solar charger it is a great addition to our campervan and also used around the house to save electricity when the sun is out. The BB3 works best in the spring Summer and Autumn. We love ours it charges 3 devices at once

Purchased this to replace a much, much older solar charger of a similar type but, from a different manufacturer. The Big Blue charger appeared to work great, however i noticed it was taking significantly longer to charge a powerbank, than my old solar charger was ( before it broke) So using a USB power meter, I tested the output of the Big blue charger and this is what happened: output voltage 5.6 volt no load, as soon as a device ( tested using a powerbank) is put on the charger and starts to pull a current the voltage then drops to zero where it stays for a short while before the voltage picks up and then the cycle repeats. This points to the solar charger not regulating the output current correctly and instead of only letting a device have what is available ( as my previous solar charger did) it keeps on allowing the device to pull as much current as possible until a current overload kicks in on the solar charger which then shuts off the power for a while. Faulty product or bad design? Not sure - it does provide some output but only to cheap chargers and will not charge what i need it to charge, and my previous charger (rav power) had no issues charging and regulating the output current as needed

Only really works in strong direct sunlight when positioned to catch the full rays of the sun. Only really useful in an emergency, and not that useful.