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obiwancanoli's avatar
obiwancanoli
Explorer
Apr 23, 2018

Replacing current 30A with MPPT controller - make sense?

Some of you have followed other posts of mine re: solar, and satellite, so hope this additional inquiry elicits similarly helpful info... If I knew then what I suspect now, I'd have had the Dealer ...
time2roll's avatar
time2roll
Nomad
Aug 16, 2020
If your current controller has a fixed charging profile you could benefit with a full function adjustable MPPT controller. Also you can overdrive your MPPT controller a bit with more panels and the controller will just limit the output to the controller rating.

In parallel you will want to match the voltage specs (Vmp) of the panels as close as possible. In series you want to match the amp rating.

The Morningstar MPPT is excellent and very programmable although it is a bit of a premium price.

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