GerryAZ said:
My experience with replacement battery in 2011, 2015 when new, and 2019 when new is that the AHr and SOH numbers updated each time the car was turned on. The 2019 seems to have an additional "adjustment" every 90 days (based upon manufacture date), but the previous cars tracked linearly. Therefore, he should have valid data. The numbers will likely drop a little at first and then be stable for a while since his new battery should be equal to the 2015 battery and that is how my 2015 acted. My experience with the replacement battery in the 2011 (original battery type from Japan) was that the reset yielded a high AHr number, but the number dropped to actual value by the time I got home from the dealer. The 2011 replacement battery AHr dropped each time the car was turned on, but the 2015 was stable for a while before starting a gradual decline.
Since Leaf Spy shows actual %SOC, it will never get to 100% or 0%. The dash display of %SOC on 2013 and later cars goes from 0% to 100% which represents the useable SOC range that Nissan allows.
Interesting. Since the early pack numbers bounced up and down, it was hard to determine where the pack actually was. In reality, they should decline since there is no way the pack can regain lost capacity in any significant amount. My 2011 got GIDmeter Feb 2012 and it read the "full" 281 until summer 2012 meaning it was supposedly at 100% for nearly 18 months. I can't say I noticed any real range loss but guessing I simply don't remember.
The 2013 max'd out at 284 GIDs and 67.36 ahr and the last date I hit those numbers was August 2014 making almost 9 months at 100% and finally my 2016 lasted a few days short of 14 months and at least on paper, was the best pack I ever had. It max'd at 363 GIDs and 82.34 ahr but it was also a bit unique. On the 4th day I had it, I recorded 82.40 ahr and wondering if I simply typo'd it because unlike the previous 2, my numbers didn't bounce around at all. Brought home Nov 10, 2016, the first time either ahr or GIDs varied was July 2nd 2017 but that lasted only a day and the 2nd time the numbers varied was Nov 14th.
Some history required here. The 2016 was first to have NCTC for me (other than the freebie from the battery suit) and due to new assignments from work, I was DCing on the road every day sometimes as much as 2-3 times a day so the entire history of the vehicle, over 90% of the charge received was fast charging.
On the first dip, I was on vacation and that was the first day back after 8 days of inactivity. The 2nd dip was the annual slowdown at work which always happens just before Thanksgiving and my numbers stayed low until late December when work picked up again. During the slow period, I averaged less than 20 miles a day including several days under 10 miles per day.
Then comes the new packs where both my 2018 and 2019 was a steady slow decline with no increases and the major adjustment every 90 days. My 2019 has never increased in stats, my 2018 did increase stats on its 5th 90 day adjustment.
It would seem one increase in adjustment is the norm for everyone. For some its the 2nd or 3rd one but for most, it seems to happen on the 4th or 5th one.
