I would like to add an additional solar panel to my current array. This would make the system comprise of 4 x 100w panels wired in series.
The charge controller that’s fitted along with 3 existing panels is a Victron 100/30 i.e 100v/30amp.
Using the calculation for required controller size, peak panel watts / battery voltage a figure of 33amps is stated.
400w/12v = 33.3 amps
this is 3 amps more than my Victron controller capacity.
Would It be safe to add the 4th solar panel without changing the controller as the over capacity of the panels is only 3amps?