Yes, the downside is that the conversion rate from solar energy to electrical energy is not very high. Additionally, it is best not to move solar panels. If they are moved frequently, their lifespan will be shortened. It is not possible. Firstly, the cost cannot be matched, and secondly, it is easy to break. Third, the load is too weak and insufficient. Fourth, no one's cell phone can often be exposed to the sun.
Solar cell phone chargers can only be used in emergencies and cannot be used to charge cell phones and other digital products. To fully charge a mobile phone, most cell phones require a cell phone charger with a solar panel larger than. 0.7W.
Solar chargers convert solar energy into electrical energy, then store it in abattery. The battery can be any form of electricity storage device and generally consists of three parts: photovoltaic solar cells, batteries, and voltage regulation components. .