Nissan Leaf battery warranty upgraded in US, first to cover capacity loss Nissan has announced that it is going to offer a bit more security to Leaf owners than soothing words and lemon buybacks when it comes to degrading battery capacity. In a note published on My Nissan Leaf (and available below), Andy Palmer, Nissan's executive vice president, writes about a new enhancement to the "warranty coverage of the battery system that powers the Nissan Leaf." In short, if your Leaf is losing battery capacity here defined as dropping lower than nine bars in the first five years or 60,000 miles Nissan will "repair or replace the battery under warranty with a new or remanufactured battery to restore capacity at or above a minimum of nine bars."... Read rest of article at: Nissan Leaf battery warranty upgraded in US, first to cover capacity loss The battery life is a reasonable concern with current generation rechargeable batteries. Not that the current batteries are horrible, but even the best systems are going to make you spend $10(+) grand at least once a decade. I imagine leasing will be a much preferred option for most all electrics.