To help equalize the current through the two batteries, the new negative cable should be connected to the left battery, not the right hand battery.
The device in question is undoubtedly a Fuse. It is there to protect the wiring and is in the right place, close to the battery terminals.
Cheers
Ross
I understand your point, however I wired the new cable to the EXACT same battery location as the original negative cable. You will notice two positive cables coming from the bank. The yellow (end of cable) is noted as "coach battery." The orange (end of cable) is noted as "inverter." This is the way Winnebago built it.
See
http://www.winnebagoind.com/diagram/2013/13_wire_182140.pdf
I believe this indicates that under "normal" usage, i.e. not using the inverter, the wiring is correct - positive from one battery, negative from the other.
When the inverter is used, both positive and negative would be from the battery on the right. This appears less than ideal per your comment.
I plan on replacing the inverter with an inverter/charger that will provide 3 stage charging, essentially overpowering the charging from the converter, which is essentially a float charge.
My question is this:
Should I relocate the "orange" cable from the right battery positive to the left battery positive to equalize the current flow?
Thanks for your comment.