Photovoltaic solar panels, also called solar cell modules, are made of crystalline silicon solar cells through a high-temperature vacuum lamination process. The power of photovoltaic panels depends on the power of the cells used. directly from the usual manufacturers. If the manufacturer cannot be found informally and there is no equipment to measure on hand, the estimate can be based solely on the cell's conversion efficiency and. the surface area of the cell used in the battery component. Currently, the average cell conversion efficiency is around 18.5%. Use a ruler to measure the cell size and calculate the total cell area S (square unit). metre). S×1000w/㎡×0.185 can estimate the power of the photovoltaic panel. Of course, this is inaccurate because the actual conversion efficiency needs to be measured. These byameters can be found on the product nameplates of common manufacturers. If you can't find them, be careful because small companies charge the difference with good quality. It is recommended to choose the solar power bank of a large photovoltaic company such as Huangming Solar. Band. The company is legitimate. The quality of the products is guaranteed.
No problem, a power bank is a device for storing and discharging electricity. Generally the voltage will not exceed 5V, so it has nothing to do with cell phones. It is recommended to purchase an external battery from a conventional manufacturer, as some small brands have unstable voltage and may damage the battery. I am currently using Huangming solar power bank, which is very easy to use and a great and trustworthy brand. The key is that you can still use solar energy tour recharge it when you run out of energy during an outdoor outing, which is the case. very convenient.