Today will be one month since the commissioning of my AIO and to mark this anniversary the battery crashes to zero for a second time in a month... :-( It had to go and do it while agile prices are high didn't it. 

AIO Crashes Again (1mth old today)

I'd suggest you & this user compare notes: https://community.givenergy.cloud/d/2709-battery-calibration/8
As you both seem to have different voltages for a given SOC.
This is worrying:/
Hopefully a unit issue not a wider one.
Did you get this resolved or at least get to the bottom of why it was happening?
Thanks
kram No and it crashed again today. That is 3 times it has crashed since the 4th July. They are supposed to be working on the issue. It has been mentioned that I should let the battery run down to 40 or less and when it has been drawing less than 500w for 30mins it should calibrate of something like that. The trouble is my house never drops below 500w for 30minutes. I tried before it crashed this morning, I even turn off fridges but still no joy, it crashed about an hour later.
Can you log cell voltages etc in home assistant for the AIO like you can for some others?