But if you use ESS the solar is not throttled. This is my flow to control the charge current. I filter the voltage and range the charge current from 20-100 amps between 10:30 AM and 4:59 PM. Outside those hours the charge current is 0, so the solar starts charging in the morning. None of my batteries on my 12V system can communicate. When the voltage rises from 13.6V to 14.2V the output changes from 100 amps down to 20 amps. You can set this to what you need to make sure you don’t get a battery going to cell high voltage disconnect. Once you have it all dialled in it works really well. I only charge to 14.2V, and in the BMS app, I can see that the voltages do not go over 3.5V per cell. When the battery is 99% full I drop the charge current to 2 amps for balancing.
I only have a 360AH battery and 200W of solar on my 12V system ATM. In summer, I will have 800W of solar and about 10kwh of battery.
adjust DVCC.txt (10.3 KB)