[iTim314]

In my opinion, the figures you quoted are all within normal ranges.

Keep in mind that there are no published figures on exactly how much energy we should see going into the battery per charge; those of us sleuths have done our best to deduce this, but almost every single "empty to full" change I observe is different from the others.

Here's some data from my EVSE's dashboard. The best I can tell, these figures are all "empty to full" charge sessions (expressed in kWh) for roughly the past three months in reverse chronological order. Beyond that, I can't confidently remember if they're full charges or not.

• 14.3
• 13.9
• 14.9
• 13.9
• 13.1
• 13.8
• 14.1
• 14.2
• 14.1
• 13.9
• 13.3

This car is NOTORIOUS for giving us ambiguous data, confusing information and then behaving borderline unpredictably. I've surmised after a fair bit of driving that the mythical "HV low end" is not itself a hard threshold as I've seen the needle dip beyond that blue/green line without the engine running. The car just does whatever it wants to do, and that may affect how much energy the battery accepts given any charge cycle.

I think the battery pack will degrade faster than people think

Well, that depends on how quickly you expect it to degrade. I'm expecting about a 20% reduction in capacity over the first decade of use (roughly calculated by how much I drive and my relatively temperate climate).

 

[iTim314]

The deviation on some of those are huge. What EVSE are you using? Are you sure that's from 0% to 100%? I used to consistently see 14+ kwh, but I haven't seen that sort of charge in a year. Every full charge I get is around 13.5 kwh now.

JuiceBox Pro 40A. All of those are sessions I am confident I plugged in from “empty” and the charge session graph shows the current fall off to zero at the end.