Shade effect on series panels.
Pictured below is the shading on 2 of 6 series-connected panels: And this is what the controller says: So, 57.2 x 5.6 = 320w (IN) Normal (full sun) should be about 84 x 7.5 = 630w,...
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The sun angle is not direct, so his controller has found about 14v for Vmp per panel instead of 17.x as rated. He is seeing 6.6a average instead of 7.5 average as rated, which matches that.
The amps showing might not all be going to the battery either--there could be some loads.
I forget the full voltage and so the Vabs set on the controller for that Li batt, but it is showing 53 there, which must be a bit lower because the controller is still in Bulk, with Vabs not reached yet.
ISTR there is one Mono panel among the six, which the OP was supposed to do a bunch of work with to isolate and do various tests with for our entertainment. :( Instead, he has been fooling around with Li batteries. With any luck, this thread indicates the OP is finally going to get on the job. :)
The amps showing might not all be going to the battery either--there could be some loads.
I forget the full voltage and so the Vabs set on the controller for that Li batt, but it is showing 53 there, which must be a bit lower because the controller is still in Bulk, with Vabs not reached yet.
ISTR there is one Mono panel among the six, which the OP was supposed to do a bunch of work with to isolate and do various tests with for our entertainment. :( Instead, he has been fooling around with Li batteries. With any luck, this thread indicates the OP is finally going to get on the job. :)
