I have read through some of the problems with the Growatt 3000 ES charging algorithm problems. Here is my scenario. I have about 1400 watts of solar at 185V. I have 16 EVE 280 AH hour DUMB batteries hooked to a 100 AMP JBD BMS. The batteries will charge to full. The next morning batteries might be at 70% according to my Victron Shunt. The growatt inverter thinks they are 100% or 75% charged. During the day it seems to match the load/solar and never really get the batteries charging. I only use it in SOL only mode and have two freezers plugged into it which use about 130 watts running. I have tried USE mode USE2 mode. I have experimented with off grid garage recommended setting of cv 3.45/ flt 3.35. I have experimented with cv 3.45/ flt 3.4. I have experimented with cv 3.35/ flt 3.35. I have not experimented with voltages above cv 3.5 / flt 3.5 not really wanting to keep them at high voltages for my application. It seems like sometimes if I turn off/on the solar and turn off/on the inverter it ramps up to 1000 watts versus the 130 watts that was matching the load. Any suggestion's would be appreciated. Dropped over $2K in the batteries.
