I bought a 24 volt panel, damaged in transit. Glass is crazed. Its rated 200watt. I needed 12v for my controller so i devided the panel into half and tapped into the positive and negative for both now seperate sides.in theory now two 100 watt panels about 8 amps but have never got more than 2 or 3 amps out each sides. Ok damaged but seems coincidental. Cells are 6x6. Both open circuit read around 16v. Can 6x6 cells for a 24v panel be different to a 12v panel?
Hello, Liked the video. On Earth Day I won a green design contest for my home energy system the RoofMill. Have a look at my home wind turbine videos of installing and running Hybrid Energy Systems. Friends and Subscribers Wanted. Later ,
You must know what or how many watts per m2 you are receiving If all the panels are rated at 1000watts/m2 and you are only getting 500 then the out put will be half the rating of the panel
I bought 6x6 Multi-Cryatalline solar cells that are supposed to be 4 watts, .5 volts and 8 amps. But when I measure the amps using multimeter the highest I ever get for amps is 3.5, even when sun is highest in the sky. Is this normal to get only half amps when measuring solar cells with meter or are these no good and I should return them? Anyone know?
I have a 250 watt panel and the junction box has been removed leaving only four silver band strands. Which one is the positive and which is the negative
For beginners, you should point out that you switched the red lead on the multimeter into the Amps plug for the second test... and you also might mention to either turn the module back into the shade before you disconnect from the Amp test, or make sure they pull away quickly, like you did in this test... to prevent arcing
Is it important to check the nominal volatge of a panel? that value that usually is 12v. And what is a good nominal voltage if the panel is exposed to sunlight? Is a value less then 12v for a 12 v panel normal eg 10.5v? 11v? or should be more then 12v?
A 12V nominal panel will normally have an open circuit voltage of 16 or 17 Volts... if you're trying to charge a 12V battery with this panel, then the voltage needs to be higher than 12V in order to induce a charge...
Thank you very much for sharing this with us, I have been trying to figure out how to test my foldable solar panel, especially the short circuit test.
How much electricity does a hd tv and a ps3 use?
No trolls please.
keith8880 1 week ago
This is an excellent video.
If you build Solar Panels by your own, it will pay you back in 1-2 years!
There is an Engineer from Chicago that explains it All
You can find his web site by Searching Google for...
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subhankar5584 1 month ago 4
if you encounter factory defects, then let them replace it...you are entitled for a warranty! =)
iLOVENATURE2011 1 month ago
I bought a 24 volt panel, damaged in transit. Glass is crazed. Its rated 200watt. I needed 12v for my controller so i devided the panel into half and tapped into the positive and negative for both now seperate sides.in theory now two 100 watt panels about 8 amps but have never got more than 2 or 3 amps out each sides. Ok damaged but seems coincidental. Cells are 6x6. Both open circuit read around 16v. Can 6x6 cells for a 24v panel be different to a 12v panel?
hebay2 2 months ago
Nice looking PV panel. hat is the power rating and what is the life expectancy?
John
jcanivan 11 months ago
Hello, Liked the video. On Earth Day I won a green design contest for my home energy system the RoofMill. Have a look at my home wind turbine videos of installing and running Hybrid Energy Systems. Friends and Subscribers Wanted. Later ,
Peace, Sam
WindPowerKits 1 year ago
You must know what or how many watts per m2 you are receiving If all the panels are rated at 1000watts/m2 and you are only getting 500 then the out put will be half the rating of the panel
sayserv 1 year ago
I bought 6x6 Multi-Cryatalline solar cells that are supposed to be 4 watts, .5 volts and 8 amps. But when I measure the amps using multimeter the highest I ever get for amps is 3.5, even when sun is highest in the sky. Is this normal to get only half amps when measuring solar cells with meter or are these no good and I should return them? Anyone know?
PiercingKnight 1 year ago
I have a 250 watt panel and the junction box has been removed leaving only four silver band strands. Which one is the positive and which is the negative
farrsouth 1 year ago
Its a uni-solar. Send me the panels and you can keep the frame :)
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SolarXpert 2 years ago
nice video. but does it matter if you get a little arc? I mean it is really no different that putting the tester on a battery right?
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TheAkb10 2 years ago
For beginners, you should point out that you switched the red lead on the multimeter into the Amps plug for the second test... and you also might mention to either turn the module back into the shade before you disconnect from the Amp test, or make sure they pull away quickly, like you did in this test... to prevent arcing
normnelson 3 years ago
Is it important to check the nominal volatge of a panel? that value that usually is 12v. And what is a good nominal voltage if the panel is exposed to sunlight? Is a value less then 12v for a 12 v panel normal eg 10.5v? 11v? or should be more then 12v?
dbriffa 3 years ago
A 12V nominal panel will normally have an open circuit voltage of 16 or 17 Volts... if you're trying to charge a 12V battery with this panel, then the voltage needs to be higher than 12V in order to induce a charge...
normnelson 3 years ago
Good video, thank you. :) I've had GREAT LUCK with AltenerystoreDOTcom, a good company.
spoonjab762 3 years ago
Wow, never knew Uni-solar panels are so so durable..
ilovekinki51244 4 years ago
Thank you very much for sharing this with us, I have been trying to figure out how to test my foldable solar panel, especially the short circuit test.
TwinJalanugraha 4 years ago