Soshine Mini Solar Panel - USB Solar Panel Charger 5v 6w with High Performance Monocrystalline for Camera,Water Pump,Small Fan,Bicycle,Power Bank,Camping Lanterns

In the California Sun in May, I recorded 0.82amps at 4.5V, which equates to 3.7 watts. I know that's not the rated capacity, but that's about right for a 6-watt panel (60% of rated capacity). I wish I could figure out how to open the connection panel so I could shorten/resolder the USB cable. every gram counts when backpacking. Very sturdy. Too hot to touch (140F) after an hour of charging, with air temperatures at 85F. I weighed it at 8.2Oz. If we could remove/shorten the excess wire it would be 7.5Oz.edit: 0.92V at 4.75V = 4.36Watts observedBack panel comes off, but you have to pry it off as there is silicone sealant gluing it all together. I was able to unsolder the USB cable, cut off the DC cable. I then shortened the USB cable and resoldered it to the voltage management board within. I wouldn't recommend this process.edit: I also purchased the "two pack" since the last one was fantastic. Unfortunately one of the two was a different cell design, and only produced half the current of the other. The working panels have two large distinct octagonal cells as pictured. The bad panel was one large rectangular cell. I'll trash the bad panel, the price is still right.

I bought 2 of these as an option to keep my Ring stickup cameras charged. Bought additional 10’ cables with barrel connectors compatible with Ring ($11?) that seemed fit for the purpose. Plugged it in and it topped off the camera’s battery from 92% to 100% in an hour. Provided enough wattage that the camera thinks it’s plugged into hard power and prompted me if I want to switch from battery.I tested it with my iPhone 13 and it provided enough power to charge it.Overall I’d say that this product is an excellent option for the purpose as well as providing alternate charging for small devices such as small battery packs or phones for camping/off grid applications.Only drawback over Ring’s $60 panel is that it doesn’t come with any type of mount. Easily fashioned though so…..5 stars overall.

Purchased for use with a Solar MeshNetwork node project. I first tested with a cell phone and was able to fully charge a 4200mah cellphone in about 5 hours of direct sunlight. After confirming function I hard wired the panel into my mesh node (Tbeam 1.1) w/2 1800mah 18650 batteries. I first tested at ground level with the panel angled and facing south, this netted good results and kept the Node charged from 90-100% for 7 days. I then mounted it roughly 18 feet up a tree where I mounted the panel flat against the tree, this is where is suspect my issues started. For the first two days we had decent weather and the panel produced sufficient power to keep the Node running, on day 3 we had heavy cloud cover and the battery dropped to 70% during the day, day 4 heavy rain and it dropped to 40% day 5 rain and cloud cover has it down to 6%. My conclusion is that between the less than ideal angle it is mounted and the minimal sun exposure it is not sustainable without expanding to a larger battery backup to keep it running until blouts of bad weather come and go.

Measurably as advertised, 5V to 6V, it is incompatible with some devices. Good for it being inexpensive, it needs direct sunlight though, a little less and becomes inoperable.

I tried to charge these solar panels for days in direct sunlight. I used my phone charge to see if it worked but it did not. I tried hooking the panels together for more power but they still did not charge my phone. Now I am trying to return for a refund and lo and behold I have to find a UPS return place around my location. When I did they wanted to charge me $4 for printing out the QR code which I would love to print out my own but there is no simple option to do it so I guess I will keep looking. This one star rating goes for Amazon too! Why make it so complicated to print a shipping label? Oh I guess cause you want to keep the money when I get tired of trying to figure out how to ship the junk back!!!

I peeled the "Soshine" label and underneath was more spec information that listed 5 watts lol. So these, like most mainland Chinese no-name electronic products, exaggerate specs as per usual. Purchased 4 sets of two panels for a project and tested using a USB voltage amp meter under various loads on a perfect sunny day at around 80 degrees F. Testing single panels, voltage starts to sag at around 2 watts and the maximum power point was about 3.12 watts with 3.9v and .80 amps. The different panels varied slightly but were consistent. Under perfect lab conditions I estimate maximum power would likely be around 3.5 watts. Hooking up two panels in parallel with the supplied wire gets you about 6 watts. These will likely not charge your phone but will charge a small 1-2 cell USB power bank which you can then charge your higher draw device. The panels are very DIY friendly for electronic projects however and are both adequate compared with similar products and at $12/panel are OK price-wise.

Panel tested with multimeter and matched promised specs on label. Just charged a USBC device successfully

This is the second set I've purchased. 1st is still functioning well. Put them on Dash over in car and use to keep items (rechargable vacuum, tire inflator & other USB items charged after use rather than counting on speratic charging when car is in use. Just love em. Purchased this second one as more & more USB rechargable items are in use to need charging.