which controller should I select for two 175W 12V panels connected either in series or in parallel
asked
which controller for two 175W 12V panels parallel or series
You will have to put them in series, otherwise a mppt will not start, voltage needs to be 5v higher then output
So in series they are 24V and about 14A so a small mppt is fine 100/20 for instance
Check your panels here and see what mppt is best
