Keep in mind that your analysis about things dividing equally might not always work out in the real world. Each of the 3 sets of batteries on Cbreeze is individually switched so potentially all the current
draw could be from one set of the batteries. Even if the sets are not switched a connection/ cell might fail and the remaining two sets might pick up the load.
Over the years I have sometimes experienced some issues with the threaded studs side of the battery
terminal connections (high resistance connection). For that reason I stick to the old lead battery
post clamp but use a high quality plated copper terminal. I am probably in the minority on this but might keep this in mind if you are starting from scratch on the cables
. Being a little anal on the electrical system
has served my well over the years.