stuart, thank you for replying.
So it’s basically down to the i2c isolator not working at lower voltages and wanting the system to be comparable with other cell chemistries other than standard lithium. That makes since.
Is there any work being done on the ESP controller board to be able to cut power to the load of the entire pack if one of the cells reports under-voltage or some other error? (Either through a relay or power mosfets.) From my current understanding the ESP only collects and reports each cell’s status.