I have 3 domestic batteries and one engine battery. I assume all negatives go to the shut? The voltage goes down to 12.1 v yet the bmv says 100% and infinity time remaining. Any clues? Thanks
The BMV can only monitor the State Of Charge of ONE battery / battery bank.
So the shunt should be positioned / connected to the negative terminal(s) of that battery / battery bank only to properly monitor all current flowing into & out of it.
You may need 2 battery monitors for your setup to monitor SOC on both batteries / battery banks.
Thanks will alter wiring. Fingers crossed
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