Leaf spy

[Ingbert]

I have questions about page Battery cells.
I have a Tekna model 2018, 40 kWh, 38.000 km, Live in Sweden
My Readings
AHr=106, SOC=60%, 21 mV, SOH=91,1%, 361V, Hx=106,5%
At what SOC shall you do the reading of different cell voltage?.
What is the max acceptable reading?
What is Hx ........%?
Thanks

 

[Mcflocki]

4.2 volts is 100% for a cell.
2.75 is below 0% and it’s the absolute cut off for NMC cell voltage.
There seems to be some debate about Hx but it seems to correlate with internal battery resistance. The resistance goes up over time as the battery degrades. The Hx starts around 100 and goes up and down but in the long run the Hx seems to go down as the battery ages.
You can read the cell voltage at any SOC% it’s shown in the farthest left window of my Apple LeafSpy pro with a multi colored graph. Let me know if you have more questions