5V solar charging panel

For the hardware
 
, I purchased a solar panel from the Internet and used EDA to draw a simple PCB circuit. The TP4059 charging
 
circuit is used for charging. It is the same charging circuit as the rhythmic light strip of Lichuang Kaiyuan Plaza. The red light is on when charging and the green light is on when full. Bright.
 
Reference link: When I bought
the Rhythmic Light Strip,
 
I didn’t find two solder joints in the middle of the solar panel. I thought there were only two corners with positive and negative solder joints, so I drew the PCB very long, placed the chip on the back, and placed the LED light. On the front.
 
Test summary:
Because it has been cloudy these past few days, the test results are not very good. However, it can be charged on rainy days, but it can basically only maintain the power. The voltage is almost 4.2v or more, and the current is only 2mA.
When tested under direct sunlight on a sunny day, the current reaches more than 30 mA. If used to charge a 600mAh battery, it will take 20 hours. Therefore, a small solar panel can charge, but the efficiency is not high. If there is a power shortage, solar energy can be used panels, but the type needs to be changed. There are also some high-current solar panels online. You can also buy a few more and connect them in parallel, and the final charging effect will be improved.