We lost the first bar on the replacement battery in our 2011 at ~92,000 miles last month. Since the original battery was down one bar at ~31K miles, the replacement battery is performing almost exactly the same as the original, which was replaced at 61K miles for $1200.
Almost a year ago, we bought a 2019 Chevy Bolt which puts the Leaf to shame in terms of range (and hopefully longevity) of the battery. The Leaf has been retired to around-town errand use.
La Jolla, CA
2011 SLe #1317 del. 4/1/11
1st bar lost at 31,953 miles
2nd bar lost at 38,685 miles
3rd bar lost at 50,711 miles
4th bar lost at 59,758 miles after 64 months
Battery replaced at 61,307 miles.