I have been working on the part that will mount the solar panels on top of the robot. The space for mounting solar panels is approximately 160x520mm. I have been trying to find a working solution on how you can charge 22.2v lipo batteries from small solar panels (no luck yet). The main idea is not that it should be self-sufficient from solar electricity, but it should be an addition to battery and charging and possibly increase driving time slightly. Making it as green as possible.
So I just ordered 300 pcs Polycrystalline Silicon mini Solar Panel. I am going to use them to make my own custom solar panel for the top of the robot. I actually only need 108 of them, but I ordered them from the states, so what the heck, some extra is always great to have. They have the following demension 39x19mm and have the follow specs 0.5v, 0.12W and 0.24A. I will make two separate panels with 2X27 in each (54 cells for each panel ) in each panel the cells will be connected in series producing a theoretically value of 27V, 6,48W and 0.24A Then I will connect the two panels in parallel producing a theoretical value or 27, 12,96W and 0.48A. Let me double check this values again. Since I am writing from my phone 😉
So if you have any suggestions on a solution for this I welcome you to post a comment?