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Cake day: October 25th, 2023

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  • Help me understand what I’m looking at because I just can’t understand the numbers. I’m using the Model 3 Long Range AWD since I know EXACTLY how this car charges. From their results:

    • Miles per charging hour: 569 mi/hr
    • Add 100 Miles: 10 min 33 sec
    • Consumption: 23.9 kWh/100 mi = 4.18 miles/kWh
    • Max Manufacture Speed: 250 kW
    • Actual Max Speed: 251 kW
    • Average Charging Power: 136 kW
    • Charging Losses: 0.9%

    No way a Model 3 Long Range averaged 136kW adding 100 miles of range unless they started at 50%+ SOC.

    First, putting the consumption in kWh/100 miles has to be one of the more annoying metrics. This is 4.18 miles/kWh which is a lot easier to match with. So 569 miles/hr is divided by the consumption is 136kW which is what they list for the Average Charging Power. If they added 100 miles in 10.5 minutes that is also 136kW average charging speed over that 10 minutes. They said the max speed they saw was 251kW which in 10.5 minutes would add 183 miles of range. Adding 100 miles of range from 10% would only require and ending SOC of 41%.

    The Model 3 Long Range charges VERY fast to 41%. It holds 250kW until about 25% and is still just above 200kW at 40%. There should be no way it averaged 136kW charging to 41% SOC. They must have done it on a cold day with no preconditioning or something. You can add 180 miles in around 15 minutes when the battery is preconditioned. These numbers are super suspect.

    What am I missing?