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I withdraw my statement about wiring the Solar panels in series.
I've looked at my supplied "WellSee" literature, and I agree that it certainly looks as if the solar panels cannot be wired in series.
I sorry if I mis-led people, however my original research into MPPT controllers certainly lead me to believe that. The supplied literature leaves a lot to be desired, it's not exactly well laidout and a bit short on detail. Certainly in theory they could be able to do it as they employ a dc to dc converter. However theory is no good if someone blows up their MPPT controller.
However, the last thing I want is someone to buy a MPPT controller and be disappointed. I am certainly happy with mine.
No problem. Information about quite a few of the regulators is a bit iffy. i.e. many quote 10A or 20A output but do not mention the input, which leaves us to presume they are 10 or 20A input. But are they?
I have fitted an MPPT regulator today. The sky is cloudy and grey with no direct sun, the suns position in the sky is low, I have 2x110A panels and I am getting a varying charge between 400ma and 1.5A I have an ammeter which I can see is varying in ampage a lot more than the old PWM charger so things are definatly different.
Looks pretty amazing and seems to do all that anyone could wish for, lets see if the resident experts agree.
Kev
I must say that looks the business. I need to look at a manual though to be certain. Need to see how it integrates with an existing split charge system.
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If I can blag a couple of MPPT controllers I shall be doing some side by side tests. Three way change over switch to select the controllers (cheepie, expensive and normal) and a digital ammeter in series with the output to the battery.
If I can blag a couple of MPPT controllers I shall be doing some side by side tests. Three way change over switch to select the controllers (cheepie, expensive and normal) and a digital ammeter in series with the output to the battery.
Any offers??
(Perhaps ODB could sponser these tests??)
C.
That would be great. With cheapie do you mean PWM? If not, it would be interesting to include that.
When I was looking for a controller I noticed not all regulate to the same voltage (some allow choice according to battery type, others don't), which obviously can make quite a difference.
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Germany
Our thoughts are with you Chris and Graham. Fighting with Mavis and Ray 
