Victron is such an animal. I do have a problem with the over voltage cell alarm once the battery hits 100% or is full charged . I am currently running a Quattro 48v 10kva inverter, two (250/100 and 450/100 charge controllers ) total yield max is 8000W from my massive Jinko 625W 18 panels arched up on a second storey. The system runs great fills up my two 51.2V 280ah (560ah
in parallel) batteries within 5 hours. However, like i mentioned, i get over voltage alarm in one battery. We have replaced the BMS and still the issue is persistent, any input on how to manage that will be helpful, thanks .
I have attached some pictures of the error messages, current settings . If need any information please send me a message, all help is appreciated, thanks
I’ve got these warnings, too. They originate from the Pylontech BMS. One cell in my 8 pcs US5000 battery bank tends to overshoot, causing these alarms. Pylontech tells Victron to charge with 52.5V, and Victron follows that requirement. In case of cell imbalance, some cells are still low while others (in my case, one single cell) are going over 3.65V, triggering the alarm. The pack voltage may be as low as 51.1V at the time. The Pylontech BMS could lower the charge voltage requirement to prevent the cell hitting OVP, but doesnt. Result is, there are a couple warnings until the balancer has caught up.
Alternatively, setting a reduced charge voltage in ESS would help with avoiding these warnings. In my case, I’d have to go as low as 51.0V.
