BMV-600s current reading ‘I’ increasing when monitor light goes off. The reading ‘I’ when the monitor light is on shows -0.27amps, but as soon as the light goes out the reading increases to -0.42amps. The batteries (new 2 X 180Ah Varta) are on float charge from a Victron Atlas Combi 12/1500. The only current being drawn is from a fridge and bilge alarm.
Also, the SOC when not on shore power decreases as expected during general battery use in the evening (lights, water pump, electric toilet, TV etc), but overnight goes back to 100%.
The voltage does decrease with use as expected.