FYI
I got my 2016 Leaf SV at
62k miles
SOH 75%
10 bars
October 2018
battery firmware was already updated prior.
It dropped to 8 bars 2 years later, with 10k miles added, San Diego. Nissan replaced 30 kWh battery with 40 kWh new.
I’m guessing you have 3+ years remaining on 8 year warranty...