I have completed my trip. Here is the raw data:
Pre / Post DCFC Throttle Data
If anyone wants to collate and/or graph the data, that would be great. I'm not that great with spreadsheets to start with.
Here are the take aways:
All in all, the 90 packs are inferior to the 85 packs by almost every single measure (with the exception of the max amps I guess?). Usable energy in my 90 pack is actually less than in my wifes P85. My 90 pack has about 76 kWH of usable energy (I measured when the car was new), although that seems to have dropped and I just started a re-calibration to see how much actual usable energy I have now. My wifes 85 pack has closer to 80 kWH of usable energy, no apparent artificial throttling, and presumably a longer life in the presence of DCFC, even on an infrequent basis.
If I were replacing my pack with a bought and paid for pack today, I'd get an 85 pack instead of a 90, assuming they could do the retrofit. Of course, I'd rather have a 100 pack, but that seems off the table for the immediate future.
Pre / Post DCFC Throttle Data
If anyone wants to collate and/or graph the data, that would be great. I'm not that great with spreadsheets to start with.
Here are the take aways:
- Yes, throttling increases your trip time.
- Yes, it seems ~5 minutes is the increase from an absolute charge standpoint (with a caveat).
- The amount of time to "continue your trip" has increased dramatically, but not due to throttling. It appears that Tesla has increased the buffer amount by approximately 10% since throttling was implemented, so a throttled car coupled with the new algorithm increases your "time to continue" by 10+ minutes per stop, giving the appearance of a much larger increase in charging time than actually exists. Tesla kind of shot themselves in the foot with this. Or at least the timing of the throttling discovery and the algorithm changes was an unfortunate coincidence.
All in all, the 90 packs are inferior to the 85 packs by almost every single measure (with the exception of the max amps I guess?). Usable energy in my 90 pack is actually less than in my wifes P85. My 90 pack has about 76 kWH of usable energy (I measured when the car was new), although that seems to have dropped and I just started a re-calibration to see how much actual usable energy I have now. My wifes 85 pack has closer to 80 kWH of usable energy, no apparent artificial throttling, and presumably a longer life in the presence of DCFC, even on an infrequent basis.
If I were replacing my pack with a bought and paid for pack today, I'd get an 85 pack instead of a 90, assuming they could do the retrofit. Of course, I'd rather have a 100 pack, but that seems off the table for the immediate future.