Coat the box with 3 coats of UV Guard or another Magnifier Engine Review form of UV protection. Standard deck or fence sealers work well too, but make sure you apply at least 3 coats so the box is well protected against UV rays from the sun.Depending on your location, consider drilling holes into the back of the solar panel box at regular intervals. This ensures the box does not become too how and excess heat can escape. This prevents the wood from warping in extreme temperatures.
Cut a layer of Masionite peg-board to fit inside the wooden box and coat it with UV Guard. The board is then placed inside the box and this is where the solar panels will be attached to. You can also use other non-conductive board but keep away from card as this will easily get damaged if water gets inside the solar panel box.Add some caulk to the centre of each solar panel to hold it in place. Only use enough so the solar panel does not move. You can use all purpose silicone caulking and even cheap products will do the job.
Once the solar panels are firmly attached to the peg-board, place it carefully inside the solar panel box. The removable board allows you to easily replace solar cells later in case they get damaged.Use two pieces of properly gauged copper wires and attach them to the positive and negative leads in series. These will be the positive and negative terminals that will leave your box. Drill some holes into the box so you have pass the wires through and connect them to your inverter.
Ensure all other homemade solar cells you are building are wired in series too. Each panel should have a blocking diode installed to prevent damage to the inverter and batteries.Once you are sure your wiring is complete, cut the Plexiglas to the right size and drill small holes along its edge. Then apply some caulk all around the edge of the box to create a waterproof seal. Place the Plexiglas on top the box and screw it down through the holes you have just drilled.
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