Mainly look at two points:
Conversion rate: The most important thing about a solar cell phone charger is the solar panel. The conversion rate of the solar panel directly affects the charging speed. The general conversion rate is 16-19%, preferably 23%. Glarysolar uses imported high-efficiency solar chips with a photoelectric conversion rate of 22.5% and can be charged quickly.
Intelligent voltage stabilization: the charger produces a constant voltage, corresponding to the optimal voltage of the mobile phone or tablet, to protect the phone; Without intelligent voltage stabilization, excessive voltage may damage the mobile phone.
Considering the charging speed, it is recommended to use a foldable solar charger. It has a small surface area when folded and is easy to carry. Once opened it has a large surface area to rreceive sunlight and charging speed. is fast. If you spend a lot of time outdoors, you can carry a power bank to store energy in case of an emergency.