Selection methods for solar cells

1. When choosing solar cells, our focus is on the power of the solar cells. Generally speaking, the power of a solar panel is directly proportional to the area of the solar chip. The area of a solar cell chip is not exactly equal to the area of a solar packaging panel, because some solar panels, although large, have very wide gaps in the arrangement of individual solar chips, and the power of such solar panels may not be high.
2. Generally speaking, the higher the power of a solar panel, the better. This way, the greater the current generated in sunlight, the faster the built-in battery can be fully charged. But in reality, it is necessary to find a balance between the power of solar panels and the portability of solar chargers. It is generally believed that the minimum power of a solar charger should not be less than 0.75w, and a secondary power solar panel can generate a current of 140mA under standard strong light. The current generated under normal sunlight is around 100mA, and if the charging current is too small below the secondary power, there will be basically no significant effect.