Hello brains trust,
I have a BMV712 for a dual battery system in my car and I’m using an enerdrive 40amp dc2dc charging unit.
I have connected all cables, one coming off the neg of the 2nd battery to the battery side of the shunt and then on the load side I have a cable going to a bus bar and a cable going to the neg of the charger.
Could anyone help with why the BMV would be showing a minus amps (-2.3amps for example) when the charger is charging?
I have no loads connected to the bus bar and the battery is at 100%. The 2 other cables coming off the neg post are a temp sensor for the charger and a earth to the chassis.