![]() So, I can’t just run to a Tesla delivery center to check on a new car. New Model 3 Long Range cars have an EPA range of 358 miles. ![]() You would also need to do this test when the car is new to compare, if you want to get an accurate figure by this method. Wow! That’s a lot! The degradation would be less if you believe that Tesla’s EPA range of 310 miles for the Model 3 Long Range is unrealistically high. ![]() If we use that measure, my car has lost 19% of its range in 3 years and 80,000+ miles. ![]() If we compare that to the 310 mile EPA range of the car, we get 81% of its original rated range. This is a measure of current range that doesn’t depend on Tesla’s algorithm - but does depend on what kind (speed) of driving you’ve been doing. When I reached 0% charge, the distance since last charge was 251 miles, with the car doing a mix of city and mostly freeway driving at 70 mph. If you go to the Trips heading on the main menu in the car, one of the results is miles since your last charge. Yesterday, I made a more real-life estimate of my current range. You don’t actually have to charge to 100%. Note: I now realize that all you have to do is set the charge limit to 100% and it will give you the range estimate. That’s 92.6% of its original range, or 7.4% battery degradation, after 3 years and more than 80,000 miles. The EPA range of our car new was 310 miles. When I checked the range at 100% charge, it gave me 287 miles (462 km). But we have traveled to Utah to Wisconsin (and back) 3 times, to North Carolina and back once, and to Southern California and back once, so we have about 12,000 Supercharger miles logged (which are more stressful on the battery). Most of my charging is done at home on level 2 charging, which is the easiest on the battery. I’m trying to be as easy as I can on the battery. I always set the charge limit to 80% at home and only occasionally go as high as 90% on the road. I wanted to determine how much battery degradation had occurred over that time and mileage, so I recently set the charge limit to 100% - for the first time since we bought the car - to do a range test. We’ve just passed our 3 year anniversary! Our odometer as I write this reads 80,821 miles. However, we should point out that the car was a year old and had about 15,000 miles on it when we conducted the range test.We were totally excited on Octowhen we drove our Tesla Model 3 Long Range away from the Tesla Salt Lake City Delivery Center. In that test, we drove 290 miles (467 km), 20 miles (32 km) less. That happens to be the exact same average efficiency we observed when we did the same 70-mph range test with a 2019 Model 3 last year. The average efficiency for the drive was 234 Wh/mi, which translates to 4.27 mi/kWh (14.5 kWh/100km). We then supercharged the car to 100% before starting out. We drove in Chill mode and set the tires to the factory-spec 42 PSI in the morning before the test. We had it set to 68° F (20° C) and started out on fan setting #2, but needed to increase the fan to #3 as the day progressed and the cabin heated up. The temperature during the drive was in the low to mid 80° F (27° to 30° C), so we needed to use the air conditioning. However, we have observed that most EVs do, which is why we like to compare the results of the test to it. The EPA rating doesn't use a constant 70-mph as we do for its highway range rating, so the car isn't expected to achieve that. Perhaps if we continued to drive until the vehicle shut down we could have reached the highway range rating, but we did drive 5 miles (8 km) beyond the point when the state of charge reached zero. ⠀ 2021 BMW 330e Beats EPA EV Range Rating In InsideEVs 70 MPH Test
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