The rest all have pictures now. The batteries on these are all terrible. No idea how they've managed to wear them out so badly with such low kms. Did they let them fully discharge and sit for a couple of years?
My guess is they left them fully charged all the time so they can drive them when needed. Must have been a very low care factor.
I have an ex-ACT Government Leaf that had exactly that done to it (no charge times set, and I had their employee instruction book that didn't mention anything about charging to 80%) and it still has 10 bars, and Canberra gets way hotter than Sydney during summer, though maybe the cool winter months helped to preserve the battery more than the heat killed it?
...though maybe the cool winter months helped to preserve the battery more than the heat killed it?
Unfortunately the cool winter is irrelevant if the battery is already exposed to heat, especially at high charged state. According to prof Jeff Dahn, the time spent at elevated temperature (and high state of charge) kills the battery more than the many cycles.
Excerpt (if you can't be bothered listening to the 1-hour lecture ) from here :
"There are basically two main factors that speed up the inevitable death of your battery:
Increased time spent at high voltages (i.e. high charge level)"
Well, we have two sets of government fleet vehicles both presumably left sitting at 100% SOC the majority of the time for the last 6 or 7 years, both manufactured at about the same time with the same chemistry, and one set is in a more temperate climate, and one in a climate that gets both hotter and cooler, and the more temperate ones seem to have fared worse.