With enough sun, the panel can be charged quickly on a south balcony, for example, and you can fully charge a cell phone, etc. overnight

Great solar power bank now I don't need any power banks. Take more with you, everything with you and it's light, it's great. I can only recommend it. It also has fast charging

Now in midsummer the solar panel manages to be charged twice a day. One charge can power at least two cell phones. However, I can't say yet how things will behave in worse weather

Even in cloudy conditions, the solar cells still provide enough voltage to use the USB sockets. In the sun, the DC output also achieves good values, between 17v and the promised 18v when idle. I didn't measure the current because I was worried about overloading the input with the ammeter. But the charging process was quick on a power bank!

Well made and probably works quite well, my power battery is fully charged with it in reasonable sunlight. I can only recommend the solar panel.

Thanks to the 4 tabs, you can easily attach the solar power bank to the backpack using the included carabiner hooks. Loading is going very well. The small pocket allows you to check the charging status and store the charging cable.

Simply great and very practical!!!!

Super solar panel with quick charging function. Panel first charges the integrated. 10Ah battery before all power is given to USB ports.

Very convenient for cell phones

First of all, it should be mentioned that the product was stolen when it was delivered, but the supplier sent me a new device directly and easily. I would even give extra stars for that. I had the solar panel with me on vacation in Italy. 4-5 hours charging time and it was fully charged. I don't know whether the power bank really has 10 Ah, but it's enough to fully charge my smartphone twice and that's enough for me. The output socket also offers enough power to charge my JBL Extreme 3. With the battery fully charged and the JBL LED flashing red, the solar station managed to charge about 85% before it was empty and that is definitely usable! Even some smartphone chargers cannot charge the JBL Box, hence the example. I currently have the panel in constant use and will be taking it to a festival next week. Since I had it in the windshield on the trip to Italy and charged it on the way, I know that it works. So I'm sure I won't be disappointed. What's still pending is a test by hanging the panel on the backpack, but I'm assuming poorer performance. 1. I don't want to constantly walk in the blazing sun and the panel won't load very well in the shade. 2. The angle is certainly not optimal. As for weatherproofing... Anyone trying to set up the solar panel in the rain must not have understood the concept. ;-) I'm super satisfied and will probably buy another one, after all you have several devices to charge. Kind regards