question

sam1340 avatar image
sam1340 asked

Solar panel compatability

I have 6 305 watt panels connected in 2, 3 panel sets that are in series, then parallel. My controller is a MPPT 150/85-MC4. I am charging 8 6 volt batteries producing 12 volts. I have the capability to produce 1830 watts. Specs say my controller can only handle 1200 watts @ 12 volts but will handle 2400 watts @ 24 volts.

My question is am I over running my controller?

Can I switch to 24 volts and do you have a step down convertor from 24 v to 12 v that can handle this load?

Or is there a better way?

Solar Panel
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1 Answer
Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

"My question is am I over running my controller?"
No but you can't use the full power of your solar array.

"Can I switch to 24 volts and do you have a step down convertor from 24 v to 12 v that can handle this load?"
I think it hard to find a DCDC converter with this power and if you find one it is only a converter not a charger.

"Or is there a better way?"
Connect your batteries to 24V and use one or more DCDC converter to supply your loads.

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