[mncolinlee]

It entirely depends upon the chemistry of the automotive lithium battery, which typically use different catalysts than laptop batteries. For Lithium Manganese Oxide batteries, the prediction is 70% after eight years. That would be 175 miles range at 120,000 miles driving. There are new and better chemistries coming out like lithium NMC arriving this year that store 75% more energy per lb at a similar price. http://insideevs.com/nissan-ceo-carlos-ghosn-second-generati...

[ryanhuff]

Thanks. If you read the comments on the page that you linked to, you will see a couple of Leaf customers complaining that their battery capacity is already down 15%. Hopefully the new batteries technology addresses this.

[mncolinlee]

That is a problem in the hottest regions of the country and the world. Our recent climate change-related heat wave made the problem even worse. There is no active heat management in the current Nissan Leaf battery except a battery warmer for cold temperatures.

Since I live in Minnesota, I don't expect I'll venture to the Arizona or SoCal desert with my Leaf, where most of the damaged Leafs are. I also limit my charge to 80% max during the summer to lengthen the battery life. So far, I haven't had any noticeable capacity loss.