I am in a similar situation and would appreciate some guidance.
I did purchase my 2016 SV 30kWh about a month ago from a dealer in the Dallas area. Door sticker has manufacturer date of 02/2016 so it is almost 2 years old.
~700 miles on the odometer(<300 from the dealer)
Showing all 12 bars on the dash display as expected
However I have had a delta of 140 mV or greater the last few times I have checked LeafSpy, at LBW it will show 2 weak cells.
Also the following values are troubling for a car with 12 bars and <1k miles
AHr = 60.48 SOH=76.09% Hx=75.01%
All DTC's ok
The battery most often lives between 20% and 85%, I charge at public charges so sometimes get over 80% but it has been cold so I did not think this would be an issue
I have only driven it to LBW twice, both times were to warm the pack before charging.
I am getting better at EV driving, gave up on EcoMode but in a few weeks I've increased my average efficiency from 3.6 mpkWh to 4.1mpkWh.
Have I done something to kill this battery in a months time or is it possible it sat highly charged in the Dallas climate for too many months?
Is this concerning should something be done now or should I enjoy the car and warranty the battery when the time comes. Can a service center replace individual cells or only the entire pack? Also why the discrepancy from the data pulled from the BMS by LeafSpy and the Dash Display. Is the cold really that bad on these 30kWh packs?
Here are some screenshots from LeafSpy
Here is picture of the dash display from earlier today
Edit: Corrected Units