The Victron Lithium Battery indicates:
Take care that the cross-sectional area of the system cable is equal to the cross-sectional area of the string cable, times the number of strings.
How important is this? My wire is just as long as my parallel connection wires. However I went from 4AWG to 2AWG on that wire since there is more current. I currently only have 2 x 200AH batteries but plan to add 2 more.
I had never came across such a concept and most videos I see online don't mention anything. Just want to make sure I take the best care of my Victron equipment. Any notes would be appreciated.