Safe. It generates electricity through solar energy and allows your mobile phone to get stable power. It is a relatively energy-saving method and can be used directly. Solar panels are also called solar cells. They constitute an assembly made up of several solar cells. They are the core part of the solar power generation system and the most important part of the solar power generation system.
Can cell phones be charged with light energy?
1. Power size: Choose the appropriate power according to your own electricity needs. If it is used to charge mobile phones and small devices, the power should be between 5W and 20W; large devices such as vehicle-mounted cranes, its power should be higher.
2. Output voltage: different APThe same require different voltages for charging. Therefore, when choosing a solar panel, pay attention to whether its output voltage meets the requirements.
3. Matching Battery: To store solar energy, when purchasing a matching battery for a solar panel, note that the battery capacity and rated voltage must match the solar panel.
Theoretically, it is possible.
However, in practice, the current light energy conversion efficiency is only about 20%. Considering the cost and other reasons, the power conversion efficiency is even lower.
According to rough calculations, a civilian-grade charger capable of charging mainstream mobile phones on the market must have a photovoltaic panel area of at least 0.7 meters square to meet the requirements. mobile phone requirements. Consumption value (i.e. break-even point).
Most light-powered cell phone chargers on the market today are actually marketing gimmicks. So today's so-called lightweight power chargers actually contain energy storage batteries and direct charging interfaces. Otherwise, the palm-sized light panel charger is a waste.