Battery delta cell voltage

[vytya]

Just wondering if there is possibility to implement at least delta cell voltage or better each cell voltage for a better understanding of what is happening with cells?

[davidrapan]

There is one possibility to get more info about your batteries when you have Deye inverter /w Deye battery but never per cell values to my knowledge.

[sofkaski]

@vytya : What brand your battery and BMS are? There might be HA integrations that can talk to BMS and have information on cell level. E.g. I have a Seplos BMS it gives cell level voltages and alarms in addition to battery pack level data. For example:

[vytya]

I have custom-built on JK BMS.
I know that there is possibility to make some solution with additional ESP32, but thought that solarman is already grabs that data from bms.

[sofkaski]

Solarman is limited to BMS data that comes via the BMS - inverter communication (CAN-bus or RS-485) and what the inverter publishes as registers to modbus.