I have 840 ah of Lifeline AGM batteries, Victron Multiplus 12/3000, Multi Controller, BMV712 and 4x Victron MPPT controllers. I am trying to give priority to the solar to handle all AC and DC loads until the battery SOC drops to 70%. At that time I would like the charger to come on (AC in on ) and charge to complete a full absorb phase.
I am using the dedicated ignore AC input virtual switch (see full configuration below).
The BMV 712 has no alarms set.
Once or twice a day I am getting a low battery alert and or inverter shut down with a low battery light. The voltage does not appear to be dropping below the cut off level. I do see the AC in voltage drop but again, not low enough to shut down the inverter.
AC1 in is from a marina but the power seems to be stable and good qu
ality.
Any suggestions would be most appriciated.
