I have a BMV 602S, and ACR Charging Isolator, and a Blue Systems Battery Switch. I use the monitor for both the house bank and starter batteries. I recently had the batteries replaced and see that the electrician connected three cables to the starter battery Neg. I'm assuming that this is incorrect, because I am getting very odd readings on the monitor (SOC 85%, which cannot be true). What should be attached to the Starter Battery neg and what shouldn't be. One of the cables is the neg from the Isolator. I assume that this should go to the "other loads" side of the shunt? I am not an electrician (clearly!) but can fix this with proper guidance. Help!
