I have 200 Ah of lithium batteries. They are charged through a Victron solar charger (also a DC-DC charger and a 120V charger but those are off-line during this test.).
The issue I am running into is that the SmartShunt sets the batteries at 100% SOC when the voltage gets high enough, even though there’s no way the solar system put out that much power.
I have 160W of solar, and yesterday the batteries were at 50% SOC, the solar panels generated about 300W total for the day, there’s a constant drain of about 2A on the system, and the Smart Shunt decided that after maybe an hour of charging (perhaps 50-80 watts) the battery SOC was at 100%.
How does teh SmartShunt determine the SOC being at 100%? It’s clearly not coulomb counting. Is it set when the voltage hits float? If that’s the case this doesn’t make sense as it will hit float on its way to absorption…
What’s going on? Is there a guide for the settings for lithium?
