The above quote is an editors comment added to the latest blog post over at teslamotors.com. From my point of view this is huge news and something I had never heard before. I am very curious to know what the actual degradation curve for the batteries is over, as Tesla puts it, calender time. Is this 80% after five years?! or less that 80% capacity?! What about after that? is it linear? Does this apply evenly to both performance and range?! Unless someone else has heard this before, I think this is kind of a sneaky way to slip in this information. Interested to hear what everyone else knows about this issue.