According to battery.com.cn, at present, the conversion rate of market-oriented solar panels is relatively low, while the solar panels with high conversion efficiency are too large, too cumbersome and hard to carry, and the energy absorption efficiency of small and easy to carry is not high, so it is almost difficult for us to find a solar charging treasure that can meet these two advantages at the same time.

Recently, esaving, a new type of solar power charger, has been launched. Esaving is a flashlight like solar charging rod, which is small and portable. On the front of esaving's device is equipped with a display which can display the power reserve. The highlight is that its solar panels can expand and contract freely, and people can adjust the solar absorption area according to the size of the site. Esaving's operation is very simple. Turn it to the back, hold the two sides of the pull rod with two fingers, slowly pull out the flexible solar panel, and then slide the locking module to the right to fix the stretching area of the solar panel. A solar panel that can be adjusted at any time is born. Of course, as a storage output device, esaving also has two USB interfaces, a power socket and a switch power key on the top.

Esaving is only a concept product at present. The design comes from China. It is estimated that it will take some time for mass production to come out.