I keep getting an alarm/warning every 14 minutes via the CCGX for the following:
Pylontech battery Alarm – High voltage warnings – Voltage reading attached to each warning varies between 51.56V through 51.77V
This alarm pops up during the absorption phase. I.e. absorption light is lit on the Multiplus ii 5000 and a status of absorption charge is indicated on the SmartSolar Charger MPPT 250/100.
As per previous reply from Guy on a “DVCC and Pylontech Battery” community post, I understand that a Pylontech managed lithium battery does not have a bulk, absorption and float stage like a lead acid battery. However, during the bulk phase, the 4 US3000 Pylontech batteries charged up to 80% without any alarm. Charging has now slowed to almost nothing. Current SOC is 81%
All the Victron components run the latest available firmware as detected via the CCGX and VictronConnect App. The current firmware versions are as follows:
CCGX – v2.53
Multiplus ii 5000 – v471
Charge controller – v1.46
I have loaded and configured the ESS assistant and configured all settings as per these two documents:
I have made sure that the Multiplus II Charger Tab settings for Float voltage is set to 51V and that Absorption is set to 52V after completing the ESS assistant as per documentation. After I started receiving the high voltage warnings, I have also tried setting Absorption on this tab down to 51V. This makes no difference.
I understand that the charge controller settings are ignored and controlled by the CCGX via DVCC
DVCC is ON, Shared Voltage Sense is OFF, Shared Temperature Sense is OFF.
Any assistance to resolve this problem would be appreciated.