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DIY complete solar cells kit make your own solar panel RV - $50 (milpitas)
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Cell Specifications:
Average Power (Watts): 1.75 Wp
Average Current (Amps): 3.5 Imax
Average Voltage (Volts): 0.5 Vmax
Thickness 200 ìm = 0.2 mm
Exact dimension: 3 1/4 inches x 6 inches, or 80 mm by 150 mm
Weight: Just above 6 grams, or 0.2 oz.
II: Tabbing wires: $8 value - 40 feet tabing wire to connect the solar cells. Cut them into 6 inch sections to solder onto the bus bars on the cells.
III: Bus wires: $5 value - 5 feet of bus wires. Use them to connect them between the series and connect the tabbing wires ends to the junction box at the back of the panel.
IV: Flux: $7-$9 value - an easy-to-use flux pen that dispenses flux onto the bus bar or your tabbing wires without leaving a mess. It's used to aid soldering and bonding of the wires to the cells. A must have item.
V: Diodes: $7-$9 value - 1 diodes rated at 15 amp each. Schottky style diodes.
This set of new 3"x6" solar cells are string ribbon multi crystalline cells made by the all American solar company that has the smallest carbon foot print - they waste the least silicon in making these cells. The front of the solar cells looks similar to the traditional multicrystalline solar cells in that they show the borders and shapes of irregular crystal formation. In terms of output they may be slightly better, but in any volume production you are going to have cells with varying levels of power output. The cells are the original factory standard cell size, not other sizes cut by using home made tools which could damage the cells during cutting process. The cells have never been used or soldered, and are not recycled from badly made panels like some factory installed tabbed cells are. There are no tabs on these cells so you can start from scratch and get experience in making solar panels. These are high power cells, and don't confuse them with some of the low power cells being sold that look exactly the same.