I have Model 3 dual motors with 13,564 miles (21,829 km) and charged to 100% this week, still showing 310 miles (Teslafi shows more precise 309.8 miles.) But your basic thesis is that I can’t believe that, that my battery capacity has to have actually degraded by at least 2%?
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Well, what does this image proof? Nothing.
The actual math goes like this:
kWh total capacity/245*1000 = rated range.
The thing is, the cars that are shipped have anywhere between 77.5-78kWh. You might have gotten a good battery and the BMS estimates 78kWh at brand new. Using the above math
78/245*1000 = around 318-319 miles rated at brand new
But since Tesla voluntarily decided to "max" the displayed rated range to 310, you never "saw" those hidden miles displayed to you, but you have been using them since day 1. Same with the RWD LR update of 325m "that never came".
Now if you do the math and we assume you are at around 309m and not 310 or 497km
Now if we reverse that same math
309*245/1000 = 75,70kWh total.
So you think you have 0% degradation and somebody else liked it and thought the same, but the reality is that you already lost at least 1.5-2kWh and this is a real degradation of worse case 3% to about 2. something%
Also, change to KM and see if you get 499/500 as brand new (as it is rated) or 497km or something even lower and post the screenshot.
If you wanna do degradation calculation based on SoC% and rated range, which is 2%-4% inaccurate(more in my video), you should change to km and charge in km
I explain most of this math in this video:
There is also another video from another driver who has the same observations on his S
watch?v=gMjFQftk6WQ