I see on one of the stickies regarding batteries and warranty that the 30kwh batteries in the 2017 leaf are able to be replaced with 40kwh batteries under warranty.
I am shopping for a USED leaf, and it has been hinted that there is a strategy of finding a 30kwh leaf under battery warranty with lower battery health. Specifically, I am looking at a 10-bar 2017 leaf SV from Arizona. Is there a way to confirm that a battery is still covered under warranty? The exclusions list on the warranty sheet say >120F over 24hrs. Is there a datalogger on the battery to confirm that it did not reach this temperature exclusion? Can a dealer tell me if it is OK? I am looking at a leaf from carmax in Arizona, and I doubt they have the necessary tools (or desire) to read the data.
Some background: I only need about 38 miles every day round trip, and this will be a third car, which will never be taken on long trips, so I can eat some battery degradation off the ~100 miles without it impacting me. I can also top up charge at my workplace if I ever need to. I live in Colorado, and have a 4x4 truck for slippery winter roads.