For this project I am only going to use 18 of the solar cells for the array I am building. The array will be able to charge a 12 volt 10 watt hour battery in a day. The total cost of building this array is about 5 dollars, a comparable array or solar cell can run you 60 dollars.
Since all the parts are salvaged, I will test every thing every step of the way, I don't want to completely assemble the array only to find out one of the components I used is faulty.
For testing you will need a multimeter.
Step 1: The Lights.
I took them apart and kept the tops with the solar cells and electronics.
At this point you don’t need tools all the parts clip or press together.
The white spot next to the solar cell or in the solar cell is a photovoltaic cell the photovoltaic is used to set the light into charging or lighting mode.