To put it simply, solar modules are not just decorations and can in fact be charged by sunlight. The ordinary power bank with a battery board sold on Taobao usually needs to be exposed to sunlight for several days to be fully charged. The battery capacity is said to be very large, but in fact it is not. Solar batteries are generally used for solar and commercial charging. Don't think that solar batteries can only be charged by the sun. Some people have the habit of leaving their external battery in the car to charge it in the sun, which is very dangerous, especially in summer, when the temperature inside the car is 60 or 70 degrees Celsius, which can easily lead to hidden dangers. The one below is a quad power battery, with four battery panels and 4,000 mAh. It can be completeTanned in about 4 hours under sufficient sunlight.
There are not many reviews of online solar power banks. How to use solar energy to recharge? Can it be modified to use high-speed solar charging?
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.
If you want to expect this thin and small solar panel to achieve high-speed charging, the whole world will kneel down and call you the “Father of Energy”. The reason for the negative reviews lies in this. solar panel. The carrying capacity is really useless. When he ist exposed to the sun, the current is only a few tens of milliamps, which is no different from decoration. It takes 300 hours (just eight hours of sunlight per day) to fully charge. .
For high speed, at least one 30cm square solar panel with a size of 8W or more is required.