ok here goes. I have a very strange problem .I purchased 4 100 watt solar panels about a month apart.I didn't really get serious with them unti about 2 weeks ago
I connected them in series and got about 83 VOC and about 5 ISC which is about right from what I read.Oh I am using a 30A MPPT CC. I have not been able to get more than 200 watts out this configuration. So as a test I connected the 2 newer panels in series and got about 150 watts with just those two. I have been going round and round with the manufacturer for two weeks.
They said do this test do that test. I even sent them pictures of the reading at their request.
Now I decided to buy 2 more 100 watt panels and put them in series with the 2 newer ones.With this configuration I was able to get 350-360 watts.
It's only logical to me that the 2 older panels are creating my problem,even tho the VOC and ISC are in specs.
I even tested the 2 older panels separately and only got about 30 watts each on a bright solar day.The others about 80 watts each.Has anybody else seen this problem with panels they had?
I connected them in series and got about 83 VOC and about 5 ISC which is about right from what I read.Oh I am using a 30A MPPT CC. I have not been able to get more than 200 watts out this configuration. So as a test I connected the 2 newer panels in series and got about 150 watts with just those two. I have been going round and round with the manufacturer for two weeks.
They said do this test do that test. I even sent them pictures of the reading at their request.
Now I decided to buy 2 more 100 watt panels and put them in series with the 2 newer ones.With this configuration I was able to get 350-360 watts.
It's only logical to me that the 2 older panels are creating my problem,even tho the VOC and ISC are in specs.
I even tested the 2 older panels separately and only got about 30 watts each on a bright solar day.The others about 80 watts each.Has anybody else seen this problem with panels they had?
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