Also, another problem with the warranty provided by Nissan is that it only covers capacity loss below nine bars. The capacity loss in this situation will have to be quite significant. Just to give you an idea:
12 total capacity bars, the first represents 15%, the subsequent bars represent 6%. Hence, at nine bars this would represent 27% degradation. However, the warranty states "below 9 bars" so actually you would have to be down at 33% degradation.
Only before 60,000 miles and 2/3 of the battery's original capacity will Nissan replace the pack. Not a reasonable warranty IMO.