Nissan Leaf owners stage massive test to prove battery aging case
During the heat of summer, Leaf owners in hot climates - specifically in Arizona - began complaining that their cars were no longer retaining their 12 battery bars and instead were only allowing charge to 10 or 11 of them. Nissan says the Leaf's batteries are good for at least 7 years at up to 80% capacity, but at losses like these owners were seeing, that would mean far worse than that and in much less time.
Soon after the reports began proliferating both online and through dealership complaints, Nissan issued a statement saying they'd be investigating the issue and would make things right. So far, no further substantial information has been given by Nissan despite having called many of the affected owners into dealerships to do full diagnostic computer and systems downloads from their cars.