Hi. the picture does, just give the mileage, 38,795.... obviously degradation is not much a function of mileage. The battery has just gone down very evenly, almost 1% a month, with pauses in cooler weather. Ok, this is Jamaica, but its actually not that hot, 72 - 85 F mostly, but the 2011 batteries obviously don't like it. I now have a 2015 with (just) 12 bars, and we will see how that fares. The degraded one has never been fast charged, while in 3 years the 2015 had been fast charged some 350 times and hardly ever slow charged.... I can't tell you what works!
