That's awesome. It seems to confirm that the I Pace does a good job of maintaining the health of the traction battery. Just curious ... are you on your original 12V batteries?
Paul - Where does Jaguar recommend charging to 80%? A lot of people seem to believe it but there’s no evidence to support the notion as far as I can see. The car is designed to charge to “100%” and Jaguar recommends plugging the car in overnight so you start the day with a full charge.
I think the 80% charging preference is from two sources: (1) extrapolation from the fact that the car reduces charging speed when on a Level 3 charger at 80% and above; and (2) the reduced regenerative braking when at a SOC above 90%.
I don't think that extrapolation from level three charging behavior to level two charging is born out by empirical evidence (see OP), or at least it isn't measurable. Also, there may be some rebalancing benefits to charging to 100%. There are charts floating around that suggest the car rebalances when it hits each 5% mark on the SOC, but it appears that the there is a more significant rebalancing at 100%.
I generally keep the car between 50% and 85% SOC for my regular routine and py ump it up to 100% whenever I go on longer trips. I doubt that it matters much on the I Pace.
ETA: I think folks are also extrapolating from experience with other devices. My MacBook Pro, for example, automatically stops charging at 80% because I'm rarely off the plug for long. My routine of keeping devices between 50% and 80% has certainly increased the battery life on my personal devices (phone, iPad), compared to my wife who charges her phone to 100% multiple times each day. Again, I don't think that this extrapolation to the I Pace is supported by the data, but I can see why folks may follow the same charging patterns on their I Pace in an abundance of caution.