Skroutz.eu

I had ordered something else and they eventually sent me this because it is similar. Because I was impressed by the low battery capacity, I opened it and discovered the obvious. It contains five 18650 batteries, of which only three are of relatively good quality and connected. The other two are of poor quality and are only there to add weight to the device so that it doesn't look cheap. I estimate the total battery capacity to be 3000 mAh and it charges the phone only when it is fully charged and with the panel exposed to the sun as well. The advantage of the device is only if you are skilled in electronics (the batteries are soldered) and replace the poor quality batteries with other commercially available 18650 batteries that will definitely be of better quality. Alternatively, one could seek the help of an electronics specialist to replace the batteries. Generally, most devices, especially those coming from "China" (not just power banks), have poor quality or faulty built-in batteries, which is why replacing the battery, if possible (and economically feasible), enhances the capabilities of the device. Generally, I would recommend caution with products that have built-in batteries or are difficult to replace. Personally, because I enjoy tinkering, at some point when I find the time to deal with it, I will try to replace the batteries (it is not easy) with better quality ones. The only positive aspect is its flashlight.