There are 5 indicators on the solar charger.
One is a solar charging indicator, which lights up in green when exposed to sunlight.
The other 4 blue indicator lights indicate the battery level.
When you press the power button, you can see the remaining power at a glance.
1 LED light: indicates that the power is within 25%
2 LED lights: indicates that the power is within 25%-50%
3 LED lights: indicates that the power is within 50%-75%
4 LED lights: indicates that the power is within 75%-100%
With these 4 LED indicators, it is easy to know the remaining power, and there is no need to worry about sudden power failure when going out.