mgoleta said:
25% SOC to 83% SOC took 8.7 hours for a total of 12.5 KWHrs. This was equivalent to 55-60 miles of driving.
If you are just saying that 83% - 25% = 58%, and 58% * 100 miles = about 58 miles, then you aren't facing facts.
Fact 1: Numbers reported by CARWINGS are not really SOC percentages. They are just a pretentious way of reporting how many bars you have. "83%" really means 10 bars out of 12 showing, nothing more (10/12 = 0.8333). "25%" means 3 bars showing.
Fact 2: If you use timer controlled charging and select the "Battery Longevity" option, you will charge to 80%, not 83%. Yes, there will be 10 bars showing, but see Fact 1.
Fact 3: With the April firmware upgrade the bars disappear more quickly. I'm not sure we know yet just how much more quickly, but there is definitely a significant reserve left after the last bar disappears.
Fact 4: Most people get less than 100 miles of actual driving out of the full capacity.
My own guess on the Fact 3 reserve is that it is about 12% of total usable battery capacity with an extra 3% added to the top bar. If so, each bar represents about 7% of capacity. That would mean you drop to 3 bars at about 33% and to 2 bars at about 26%. On that assumption, CARWINGS report of "25%", which really just means 3 bars, would actually be somewhere between 26% and 33%. That, plus Fact 2, implies you were not seeing 58% used, but instead perhaps somewhere between 47% and 54%. If we assume, from Fact 4, a typical full range of 90 miles rather than 100, your corrected driving distance for 12.5 kWh would be somewhere around 45 miles, call it 40 -50 because of the uncertainties.
Forget the CARWINGS lies. Tell us your actual distance driven based on the odometer and your actual energy used to recharge based on either a Kill A Watt or a dedicated meter, along with your driving speed and conditions, and we'll have something meaningful to work with.
Ray