So I roughly worked out that I had about 50KWH of usable capacity on my 2014 S 60. And by that I mean, when the car reports 100% full all the way down to 0%, but not including the buffer. And I think it's pretty normal for people to be able to drive quite a few KM below the 0% mark. So the 50KWH was supposed to be the charge level you could actually see. As I understand, when new, the usable capacity was about 58KWH, suggesting that if I have 50KWH, that would mean I'm seeing a 14% degradation. Recently my range SEEMS to have been going down, and it got me quite concerned. Now I'm not sure if I'm actually losing range, or my battery is out of balance, or if maybe I'm just interpreting the numbers wrong. So yesterday, took a short trip and started off with 90% charge. Arrived at destination with about 41% remaining. According to the trip computer, I used about 23.5KWH of power. This suggests that my full charge is about 48KWH, not 50... I plug in, and let it charge back up to 90%. Charged at a slow rate of 2kw over night, and it hits 90% about 5 hours before it's time to head back home. I look at the computer and it says it's added 25KWH to the battery. Interesting... Drive back home and my state of charge went from 90% to 46% (used 44%) and my energy consumption was about 20KWH this time. This suggests that 100% is about 45KWH? Something like that? How can there be such a discrepancy in percentage consumed and power consumed? And if 25KWH is added to the batter to replenish the 23.5KWH that was consumed, where does that 1.5KWH go? It's a good 6% difference. is this just charging efficiency? In which case, does the Tesla count the total power coming into the car? Or does it count what get's stored into the battery? Is 45-50KWH indicative of bad degradation or is this fairly normal? My rated range is about 275km at 100%. I cannot realistically get it more than that. Best I've ever seen was 280km, but that was last summer. This seems rather low to me, but I'm wondering if this is actually kind of normal. For the Americans who don't understand metric, 275km = about 171 Miles. I normally charge to 90% where I get about 248KM (153 Miles). I've lost about 3 - 5KM (2-3miles) of rated range since buying the car in 2016. The weird thing is, the lost range all happened immediately after I got my car back from a Tesla approved body shop. The body shop had my car for over a month and when it came back, the rated range was lower. I have since run the battery down to near 0 and charged to 100% to try and balance it, but never got that range back. I also don't use superchargers (ever!). What could the some reason be for the loss in range after the body shop? Anyone know what level of degradation would qualify for Tesla warranty replacement?