GetOffYourGas wrote:After driving a Leaf for 5.5 years, I was down to ~80% capacity, but I still could get far enough for my needs. Does that mean that my charging habits were "vindicated"?
My understanding from anecdotal evidence supplied by Leaf 1.0 owners on this forum, is that more cautious charging habits would have lessened your 20% degradation of your battery capacity after 5.5 years. Whether that is true or false and whether you were willing to go to that extra effort is only for you to decide.
I don't have a Leaf 1.0; I have a GM Chevy Bolt EV.
I preferred to not believe the "shy is falling" arguments given anecdotally by other car owners on this forum (and other forums) and chose instead to believe research that I separately did.
This research lead me to believe that GM incorporated its experiences from the Spark and Volt and built a battery system that, among other features, put a headroom of X percent and a floor of Y percent into the Bolt battery to then give the user a 60KWh usable capacity.
Consequently, the degradation of lithium ion would most likely occur, at least initially, within these protected areas, and hence I should not see any degradation for many years.
It is my belief that this has borne true for my first two years of driving with "aggressive" charging habits.
Other than the stated capacity of 60 KWh when the car was delivered new, I cannot go back in time and give any other data point for you to measure against.
I am, willing to consider more testing of my vehicle, under more specified conditions of others "in the know" so that I can get a clearer picture of the current capacity of my battery.
As I mentioned earlier, I should have looked to the My Chevrolet app for the percentage charge remaining.
Had I not been tired in the late evening after driving 264 miles, I would have considered doing what I did when my Chevy Volt 1.0 lease was about to end: drive it until the battery is completely empty, so that we would know the full capacity based upon the Energy Used meter.
If you have some of those specified conditions for me to consider on another test: fire away!
I will say that, somewhat analogous to your stated question, that if my Bolt EV was able to deliver 60KWh and mileage of 230 miles on an "average" drive when new on delivery, that, yes: if I can now get at least 55.5 KWh and 264 miles while doing an acceptable "regular" drive; I am happy with my "charging habits!"
For those interested and who know Southern California, the drive was:
Outgoing: the 170 south to the 134 east to I-210 east to I-10 east, when in Yucaipa I noted that there was a beginning of elevation, so that I turned around back on the I-10 west and 210 west until I had completed 105 miles and stopped for dinner and some poker.
The Return: 210 west to 134 west to I-5 north to 118 west to 23 south to 101 South to 134 east; turning around just after Glendale to 134 west to 170 north and off to home for the remaining 159 miles.