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leigh avatar image
leigh asked

Which Controller?? Help please:-)

Hi all


I have a 12v system they are 2 x 12v @ 220ah so total of 440 ah on my boat.


I have been looking at the following panels and would like to install 2 or 3

- https://klimaenergi.dk/wp-content/uploads/2018/08/Vikram-SOMERA-Ultima-60-CELLS-1500v-Full-Black.pdf

Even after quite a bit of research and attempting to understand how to calculate it. I always end up with an extra unsure thought..

I have come to the conclusion that a reputable MPPT controller is key there for I decided on victron

So which MPPT controller would I need for 2 x these panels

And which if I get 3 of the above panels

Or is there a better scenario you could recommend.


Your help is greatly appreciated



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1 Answer
JohnC avatar image
JohnC answered ·

Hi @Leigh

Try this calculator.. https://mppt.victronenergy.com/#

Those panels would work ok in Parallel into 12V batts. Or you could even do one (smaller) mppt for each panel if you had selective shading.

But have a play. Come back as you need.


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leigh avatar image leigh commented ·
Thanks, I entered the info into it before posting this but It would not let me add a battery float of 13,4v ..


Both panels are on the highest point of the boat and should have not shade.

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