DaveinOlyWA wrote:Ok, guessing I know of you in another life but have you seen my blog? I did a rather extensive one year review and the last part on degradation you might find interesting. Pay close attention to the last chart when I charted my stats every 1000 miles. The first drop was only 58 days after delivery but only tells me when I car was built and first tested. It had 4 QCs on it when I picked it up.
Yep, I follow your blog, and the drops you've seen are very similar to mine. Excluding those drops the degradation according to LeafSpy is modeled almost perfectly by a double linear fit, with nearly no scatter. That fit is a degradation rate of 3.1 aHr/10,000 miles for the first 7,000 miles, slowing to a rate of 0.9 aHr/10,000 miles after that. The drops were 0.8 aHr at 1,499 miles (~1 month), 0.4 aHr at 5,700 miles (~4 months), and 1.0 aHr at 10,000 miles (~7 months).
I realize now that I misstated my drops earlier, because what I wrote in my earlier post was the cumulative drop. So, unfortunately the drops are not actually getting smaller.