Homemade 63 Watt Solar Panel

Step 3 Solder the Cells Together

Soldering solar cells can be tricky. I recommend a low wattage soldering iron because they are lower temperature. Start with 2 cells. Use your flux pen to flux the 6 dots on the back of your solar cell. Lay the tabs from the first solar cell and lay them on top of the dots(Make sure this cell is also upside-down). Take your soldering iron and put it on the tab. Hold it there until you see heat wave go across the white dot. When you do, pull the soldering iron away. Repeat the above steps until you have three strands of 12 solar cells. Now test your 3 strands of 12 solar cells for 6 volts. If they all have 6 volts, glue the strands to your plywood with silicone. Glue them the way that works best for you.