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 orignial 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. In our listings, if we don't describe them as 'chipped', then they are considered to be category a cells, though in small number of cells, very very tiny defects or blemishes could exist but they don't affect power output. 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 $10 value. 36 feet of tabbing wires that evergrene solar uses to connect the solar cells. Cut them into 6 inch sections to solder onto the bus bars on the cells. Iii bus wires $5.5 value. 6 feet fo 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. An easy-to-use flux pen that dispenses flux onto the bsu bar or your tabbing wires without leaving a mess. It's used to aid soldering and bonding of the wires to the cells. Some useful information in making solar power. How to make sense of the aboev numbers. Series connection is when you connect the positive terminal of a cell with the negative terminal of the next cell. Parallle connection is when you connect the positive terminals of all cells in the set of cells with a tabbing wire and all the negative terminals of all cell in the same set. You can use a combination of series and parlalel connections to get the right voltage and amperage for your solar panel. And 72 cells doubles that. For example, you almost always want to use a charge controller if yuo make your panels to charge batteries. Charge controllers usually come in 12 or 24 volt settings, which match your panels' 18 and 36 volts very nicely.Yes, your panel voltage should be 1.5 times the voltage of the battery you intend to charge.
. Connect more panels together fi you want to tie to the grid, in which case, always use an inverter. However, we always recommend that the panels that you make for yourself be uesd in off-grid applications, such as charging your batteries to be used in rv, remote cabin, or marine settings. 3 for a lot higher voltage panels and configuratinos and connecting multiple panels to get high voltage, consult a professional. Remember that solar panels are always loaded with electricity when exposed under the sun. At high voltage even a tiny bit of current, when handled wrongly, can kill you. Don't get a cheap iron. It's one of the most important tools you need to have. Also when you solder, all you need to do is to apply flux on the bus bars and the backside contacts before soldering. You might break some cells during panel making process, so we always give our customer extra bonus cells for free just to show consideration ofr our customers. The number and percentage of extra cells we give vary, and it's purely at the discretion of the management, but all of our customers have been pleased with the deal they get. This will make sure that you receive the cells. And we don't know hwat the charges will be for each country. Do not get upset with su because your government thinks that you should pay extra.
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