Kingske
Well-Known Member
- First Name
- Frank
- Joined
- Jun 6, 2020
- Threads
- 79
- Messages
- 1,431
- Reaction score
- 1,641
- Location
- New Jersey and Colorado, USA
- Vehicles
- 2020 Porsche Taycan 4S, 2024 BMW X3, 2014 BMW 3 GT
- Thread starter
- #1
This afternoon, I had to get my COVID vaccine at the improbable location of Atlantic City, NJ, which is a 203 miles roundtrip from where I live and therefore an ideal opportunity to test the real-world range of my Taycan 4S with the bigger battery and 19" wheels. I charged up to 98% SoC right before I left. In the 12.5C/55F garage this resulted in a guess-o-meter projected range of 275 miles or the equivalent of 281 miles at 100% SoC. The trip was almost entirely on highways and I kept an average cruising speed of 75 mph in Range mode while the A/C was in Eco mode at 20C/68F. My wife also used her seat warming on the way back. Due to the recent charging, the battery temperature was 19C/66F at start and increased further to 25C/77F during the trip.
The outside temperature during the trip to Atlantic City was about 2C/36F and during the trip back about 0C/32F. Over the entire 203 miles trip, the SoC dropped from 98% SoC to 18% SoC with the guess-o-meter projecting another 42 miles of range left upon arrival. The real-world range with a 100% charged battery in these conditions can therefore be estimated to be 203/0.80 = 254 miles (409 km). This is markedly less than the 281 miles initially projected by the guess-o-meter, but that is due to the difference between the temperature in the garage and outside, I guess?
Using the official useable battery capacity of 83.7 kWh as 100%, this translates into a consumption of 33.0 kWh/100 miles (20.5 kWh/100 km) during this trip. However, the Trip readout on the Taycan's PCM showed a consumption of 35.5 kWh/100 miles which would suggest a useable battery capacity of closer to 90 kWh, or that the Trip readout does not take regeneration gain into account, or both.
Finally, it struck me that I consumed 35% of the battery on the way to Atlantic City and 45% on the way back, despite that there is no major elevation difference and that there was little wind. This leads me to believe that one or both of the following may be true:
1) the relatively small temperature difference between both legs of the trip does make a big difference,
2) the SoC% readout is not linear with the above-50% part effectively covering a bigger share of the battery capacity than the below-50%.
The outside temperature during the trip to Atlantic City was about 2C/36F and during the trip back about 0C/32F. Over the entire 203 miles trip, the SoC dropped from 98% SoC to 18% SoC with the guess-o-meter projecting another 42 miles of range left upon arrival. The real-world range with a 100% charged battery in these conditions can therefore be estimated to be 203/0.80 = 254 miles (409 km). This is markedly less than the 281 miles initially projected by the guess-o-meter, but that is due to the difference between the temperature in the garage and outside, I guess?
Using the official useable battery capacity of 83.7 kWh as 100%, this translates into a consumption of 33.0 kWh/100 miles (20.5 kWh/100 km) during this trip. However, the Trip readout on the Taycan's PCM showed a consumption of 35.5 kWh/100 miles which would suggest a useable battery capacity of closer to 90 kWh, or that the Trip readout does not take regeneration gain into account, or both.
Finally, it struck me that I consumed 35% of the battery on the way to Atlantic City and 45% on the way back, despite that there is no major elevation difference and that there was little wind. This leads me to believe that one or both of the following may be true:
1) the relatively small temperature difference between both legs of the trip does make a big difference,
2) the SoC% readout is not linear with the above-50% part effectively covering a bigger share of the battery capacity than the below-50%.
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