HV2600 V2 BMS/Batteries - kWh Remaining

[saleemkhalil]

Hi

We recently upgraded our battery stack from 5 batteries to 7 and HomeAssistant was showing the correct kWh remaining value. However, after upgrading the firmware (carried out by Fox) it seems that the kWh remaining sensor is now tied to the battery overall capacity.

I've ran the battery.ipynb script from Tony's GitHub and can see that I need to set the residual_handling to 2 to get the residual to show kWh remaining.

Is there a change I need to make in HA to get the kWh remaining instead of battery capacity?

Currently running Modbus over TCP, H1 5KW inverter

Thanks!

[Dave Foster]

In home assistant the sensor is reporting what it receives from the BMS, you'll need to add a 'new' sensor to your configuration.yaml file which calculates the value based on residual and battery soc - if you follow this link there is a code solution there https://github.com/nathanmarlor/foxess_ ... 2388489149

[saleemkhalil]

Is this something new with the latest firmware? It was working fine before.

I'll go ahead and take a look at adding a new sensor.

Thanks,

[Dave Foster]

Is this something new with the latest firmware? It was working fine before.

I'll go ahead and take a look at adding a new sensor.

Thanks,

Yes it's the latest firmware for all 'V2' battery packs - the new BMS sensor reports the maximum available energy taking into account SoH so this multiplied by your battery SoC is the expected available energy.

[saleemkhalil]

Thanks Dave - I've updated the card on HA!