make broken ones work

The key idea in our project is using broken solar cells. People know solar panel is a source of green energy, but the manufacturing and the material itself is not very environment friendly. So the maximize itself life by re-use broken ones is in essence reduce pollution.

This is the pack and cells we ordered. And it showed 0.273V inside.

The most amazing is, the reduction in voltage by further breaking the solar cell into pieces is not large. Although the max current is reduced, it is not a big issue in charging battery (but a issue in electric grid, which desires high current as well as high voltage).

pv cells go into here:

then in larger arrays: