I have a question regarding ESS setup with mode set to keep batteries charged.
System background :
Victron quattro 15kva
14kw PV array
3 x 250/85 TR
Small battery bank 48V 225Ah AGM(for now)
Inverter as battery monitor.
The issue I am facing is that battery power is used even though grid is available during night time. The system is set up to keep batteries charged with SOC of 100%.
The goal is to only use battery power if the grid fails due to load shedding or grid fault.
However when AC load peaks at about 12k watts, AC input voltage drops visibly on the graph. Battery power is then used to supplement demand.
This is unwanted. AC low disconnect is set to 210V and reconnect 220V.
Could it be that the voltage dropped below AC low and the system logging resolution just doesnt show?