I guess this would apply to any dual battery setup with a crank and aux battery setup. How should I properly wire in a SmartShunt to monitor both batteries? The kit will connect and disconnect the batteries depending on voltage so it has me questioning how to wire this since they can be parallel or separated. I currently followed the manual and connected the SmartShunt to the aux battery negative and then all loads and my solar MPPT to the other terminal on the SS. Red wire to the aux positive. On the cranking battery, I have the gray aux cable from the SS connected to the cranking battery positive and then a jumper from the SS load side to the cranking battery negative.
This seems to work but I get values I don’t think are correct when the vehicle is running. What I question is the aux battery showing itself being drained while the batteries are connected and the alternator is charging. Any help is appreciated or pointing me in the direction of other posts on this. Searching the forum I never found exactly what I was looking for but that might be my search terms
What is it you are trying to monitor? State of charge of both batteries or just the AUX battery?
Perhaps you could draw a schematic. Is this a vehicle (car, RV, boat), and if so, is it negative or positive ground? Is there an alternator/generator in here, and how do the batteries get charged? It might be good to have the whole picture.
Yes I’m wanting to monitor both primary and aux batteries. Genesis makes kits for multiple vehicles but I have this one in a Jeep JT. Negative ground system.
I found what I think is the explanation in this thread. This thread didn’t pop up on a search or when I posted. I won’t really see the alternator charging thru the shunt the way this will be wired but the loads and chargers behind the shunt should be accurate
I think this topic can be closed now. Thanks for the reply