You possibly can additionally join the cells in parallel the place the present or amperage add collectively and the voltage stays the identical. This methodology is just not advisable because the voltage is to low to work with and the present turns into massive and also you unfastened energy on the fee of present squared instances resistance.They’re quite simple and enjoyable to make. You solder a tin coated flat wire onto tinned strips on either side of the solar cells and join them to the following cell. The strategy you join them determines the voltage and amperage. You can also make a 12 volt 9 watt solar panel for $18.60 plus taxes, backboard and flex glass or you may make a 12 volt 90 watt solar panel for $373.50 plus taxes, backboard and flex glass ราคา แผงโซล่าเซลล์.
Earlier than soldering any results in the solar cells, I’d suggest that you just arrange a piece desk exterior in full solar and let the cells warmth as much as at the least 100 levels Fahrenheit or larger. The cells are fairly fragile and will crack if they’re chilly and also you contact them with a scorching soldering iron. A superb rosin core solder melts at about 374 diploma Fahrenheit.
Test every reference to a voltmeter to be sure you have a superb connection between every cell and the following earlier than you glue the cells to the again board. Don’t let a tinned wire dangle over the sting of the solar cell such that it will possibly contact the tinned wire on the opposite aspect of the identical cell as this may short out that cell and it’ll not contribute to energy of you solar panel.
If this occurs minimize the tinned wire again in order that it cannot contact the opposite tinned wire or if solder flows over onto the terminal beneath get some solder wick which is many fine strands of copper wire in a spool. Pull out a short part, place it on the solder and put your soldering iron on the wick and it’ll pull up any extra solder.
Make two terminals on the fringe of the again board to connect the primary and final solar cell to and use these terminals to hook up with your system that you just wish to energy. Test the voltage and polarity of the solar panel with a volt meter and mark these terminals + plus and – minus because the voltmeter signifies.
The number of solar cells you solder collectively in collection gives you the output voltage you need. You then join the output results in what ever system you wish to energy. You can also make any output voltage you need in increments of 0.5 volts Direct Present (DC) and any output present by deciding on completely different sizes of solar cells.
You too can join the cells in parallel the place the present or amperage add collectively and the voltage stays the identical. This methodology is just not advisable because the voltage is simply too low to work with and the present turns into massive and also you unfastened energy on the fee of present squared instances resistance.
You can also make a 12 volt DC solar panel with 28 solar cells. All of those solar cells generate an out put voltage of 0.5 to 0.55 volts. 28 cells linked in collection will generate between 14 to fifteen.4 volts DC. You want at the least 2 additional volts to totally cost a 12 volt battery.