And what do we make of this article?
http://www.mynissanleaf.com/posting.php ... =9&t=25773
40,000 miles driven, 30,000 of them in Phoenix, constant rapid charging, and only 7.5% capacity loss according to Leaf Spy? Over 12,000 miles, that would only be 2.25% degradation. And imagine if she didn't rapid charge so much, and/or if she lived somewhere colder than Phoenix. Unless, of course, the 7.5% capacity loss was caused by 1.) calendar degradation in the bad AESC battery, and 2.) Phoenix, so it wouldn't really matter if she drove 40,000 miles or 1,000 miles in one year, she still would have experienced the same degradation regardless?
But how do you reconcile her Leaf's profile with say Leftie Biker's experience in his 2018?
Two things (neither of which is new)
QC's not as bad as we think as long as not charged to very high SOC.
High usage promotes better health. Its almost like exercising a muscle. Long periods of light/no use detrimental. Could be high usage means little time spent at high SOC (one of the many causes of higher rates of degradation)
Another thought; high usage confuses BMS.
Now a few have reported battery stats increasing. I have yet to see this but...
I am in a period where I am seeing large chunks lost nearly daily after 2½ months of very minimal loss. I thought this was an adjustment (happens like clockwork every 3ish months or so) but this one is different in that it has lasted at least 7 days and adds up to largest drop so far.
It is also a period that corresponds to lighter than normal usage including one day of no driving along with a handful of around 10 miles or less. As of this morning my total loss is now 6½% SOC.
Finally; I reported this about a month after receiving the car that the BMS was suspect.
Unlike my previous 3 LEAFs, I could not determine what the standard full charge profile of my pack was. It was all over the map including some charges that were much higher than they should have been. I believe that the issue is not the batteries, its Nissan battery management.
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 16,686 mi, 92.44% SOH
My Blog; http://daveinolywa.blogspot.com
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