I have a VOLT inverter and a Multiplus inverter. Volt is connected to Multiplus AC In. Both inverters are connected to the same battery bank. Both inverters are connected to the LOAD side of a smart shunt. An MPPT is connected to the battery side of the shunt.
My question is why the battery shows discharging when in fact it is charging? AC loads is 15W and MPPT is putting 344W in the system and I was expected battery to show charging with 329W (MPPT 344W - AC Loads 15W)
If I change the battery monitor to be the Multiplus, then I see the battery showing charging, however it does not correlate what the shunt shows as power consumption to what the MPPT is putting in the system.
Looks like there's multiple data sources and they are not correlated