MultiPlus-II 48/3000/35-32 Island
1x Pylontech US3000C + Multiplus II discharging @2KW or more load works well over the whole SOC range.
Adding two more US3000Cs sometimes results in short dropouts at SOC below ~40%. All logs are ok, no alarms at all.
How to debug this? Has anyone else observed this?
Cheers,
Michael
I would be looking at the min cell voltages for each battery bank, and also the relevant cutoff voltage settings in the bms, and any other min voltages settings ie if you are using ess etc etc
Are the batteries balanced and all on the same firmware? If you added a battery, is it the master? System settings I assume are in line with the Victron instructions? It may be worth getting the software and cable to view each battery in detail. Also, ensure the connections/cables are all sound. Have you tested all each battery separately in a single US3000C system configuration with the same result?
