Hello, this morning the SOC value of my 2x Victron lithium batteries 25,6V/200Ah dropped from 78,5% to almost 0% out of the blue. See the following graphs;
Thanks in advantage for answering.
asked
SOC drops fast while AC input is active
More information please.
The dip looks like it happened when there was a sudden demand, so fails when power assist happened. So they possibly switched off then on again.
Check the cell balance.
@Alexandra thanks for your answer, i cant see that there was a sudden demand for power on the AC-out, see the following graph;
The output power is constantly around the 550 W, the Victron Quattro is situated before all the connected users / devices.
The DC voltage was also very low see graph;
Every night the DC voltage did get lower for the past 7 days..
You may need to set it to keep batteries charged for a bit.
Have you seen the system go into sustain at all?
