Even it wasn't in 1 pallet, say in 3 pallets stacking. That is too much - too high.
Even it wasn't in 1 pallet, say in 3 pallets stacking. That is too much - too high.
And the driver could have refused it but accepted the liability when he drove off.Even it wasn't in 1 pallet, say in 3 pallets stacking. That is too much - too high.
That is an entirely different issue, Here the issue is that ownership begins when buyer or his agent receives the goods. If owner or his agent transported them, the owner is responsible fro freight damage. That is standard commercial practice unless agreed to otherwise.What if you gave the customer a defective product to begin with?
Was there a documented guarantee? Guarantee statement? Based on sun angle and out door temp?Ok i think I got confused, because I'm beyond the shipping portion, as there was no damage to the panel that affected the way the panel could operate as advertised.
I'm moving on to the portion of the sale where the panels are now underperforming compared to how they were advertised, and I would just like replacements.
No, there is not a documented guarantee, but it does say on their listing "Panels have been tested and have good output.". Would you consider 106w to be "good"?Was there a documented guarantee? Guarantee statement? Based on sun angle and out door temp?
Can you list the "solar panel checker" that you purchased?
Yes, the tester I have is a true MPPT tester. And even if its not perfectly accurate, all I was trying to achieve was to see a comparison between all of the panels. If the majority tested in the 200w+ range, then I can use that a baseline to see if there is any big variations or blatantly bad panels, ie the 106w panelI have bought a lot of used panels. About all that can be checked without hooking it up to a system with a load is the VOC.
They advertise they have been tested and have good output. So they are either not testing them, or their version of "good output" is wildly different from mine (or most DIYers I'm sure)Was this how they based their advertisement?
I asked SanTan what an acceptable range would be for testing panels, and all he said was if they are between 33-35v VOC, then they should be fine. Well, all 58 of my panels tested atleast 33v, including my 1x that was at 62w, so clearly this is NOT an acceptable way to test solar panels....
OK, maybe I need to back up. What is the amperage and the VOC on the back of your panels?No, there is not a documented guarantee, but it does say on their listing "Panels have been tested and have good output.". Would you consider 106w to be "good"?
Yes, the tester I have is a true MPPT tester. And even if its not perfectly accurate, all I was trying to achieve was to see a comparison between all of the panels. If the majority tested in the 200w+ range, then I can use that a baseline to see if there is any big variations or blatantly bad panels, ie the 106w panel
They advertise they have been tested and have good output. So they are either not testing them, or their version of "good output" is wildly different from mine (or most DIYers I'm sure)
VOC spec is 37.6v, ISC is 8.27aOK, maybe I need to back up. What is the amperage and the VOC on the back of your panels?
Measure your panels VOC in best sun at 90 degrees of your panel. Multiply that with your amperage. Result?
Now multiply that figure by 75 percent. This is where your used panels should set at, if not then they may be bad. But Before I call foul, I would hook them up to a actual solar controller and measure the actual wattage coming out of them. Not saying that your amazon meter is wrong but I would verify before i caused a stink. Meters have been known to be wrong.
ExcellentLooks like SanTan Solar is taking the initiative and has offered to send me new ones. Im very impressed.
I have also offered to repalletize the panels that underperformed to return them, if they schedule a pickup.
I'll keep updates posted here.
When using a multimeter, it shows VOC at 32.5 and my clamp meter shows 8.4a with the panel shorted (both MC4's connected.). This doesn't show results under LOAD, which is whats important! No load tests don't mean anything! Even the panel thats COMPLETELY rusted inside shows 32v VOC.
I wonder if I can somehow measure voltage when shorted as well. Its one thing to see 34VOC, and 8.4a ISC, but when shorted the voltage might fall significantly?A shorted output represent the panel under pretty much full load though. Imp and Isc are very close to one another.
Would two multimeters work? One doing the amperage and one doing the voltage?I wonder if I can somehow measure voltage when shorted as well. Its one thing to see 34VOC, and 8.4a ISC, but when shorted the voltage might fall significantly?
I wonder if I can somehow measure voltage when shorted as well. Its one thing to see 34VOC, and 8.4a ISC, but when shorted the voltage might fall significantly?