I have a starter battery, a leisure battery, a DC/DC, MPPT and PV and Multiplus. With all functioning except DC/DC since I isolate the start battery there is a -0.02V showing on the smart shunt for the starter battery. What is this indicating?
-0.02V showing on start battery
When you isolate the starter battery, are you also isolating the voltage sense wire from the smart shunt? this should go via a small fuse directly to the starter battery. A schematic of your installation would help with a question like this....
Mike thank you for the reply. I am not. The sense goes from the shunt to a fuse at inlet of the battery positive the isolation is beyond this nearer the battery.
Isolation just removes starter battery.
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