It depends on the designer's design. However, a typical solar panel produces around 100 watts per square meter. Your power bank is calculated based on 0.01
square meter, which is just 1 watt. Even under strong light, the charging current is only 200mA. It is even smaller under normal light, so the solar power bank is not very practical.
The price of ordinary solar power banks is between one hundred and two cents. There is only one solar panel and the solar charging power is low. Pure solar charging may take a week, which cannot meet the electricity demand. Users It must also be charged by connecting to the mains. This kind of solar power bank is no different from an ordinary solar power bank.
The price of the quad solar power bank is between 300 and 400 yuan. Once unfolded, it has 4 solar cells. The battery panel greatly improves solar charging efficiency. According to the test, it can be fully charged in about 6 hours using pure solar energy. It won the gold medal in the 2015 Chinese Characteristic Tourism Product Selection. If you choose solar energy, you should choose this one.