My 2015 Nissan Leaf is suffering from advanced battery degradation. The car would only charge to 55 miles per charge. The car also has only 85,000 miles only. Nissan refused to address or fix the issue as the car was past the 7 year warranty (even though the book says 8 year warranty). Battery should still go to 150 miles per charge. Dealership claimed degradation from charging at super chargers. Car has only ever been charge at home as it is only driven 2 – 3,000 miles per year. Car stopped in the middle of the highway. Police had to come move to the side of the road. No one was injured although many could have been.