This winter never over 8.1 miles of range, overall reduction in range, never see more than 11 during summer. Will Toyota address this reduction in battery performance, it's still under warranty, I have an 8 year 100,000 mile warranty and only 27k miles.
yes and no. if it's just the winter, no, that's normal. i'm down from 16 to 11. if it stays at 8 next summer, they'll probably replace your battery.
A Prime would definitely be cool!! But I think you're within normal range for winter driving. Cold weather takes a toll on battery range. Down here we don't actually have winter. After three weeks of ownership, my range runs from 10 to 11.7 on startup. If I turn on the vent fan an 11 mile range instantly becomes 10. And the a/c hits it harder, but I haven't needed it much yet. If you're using the heated seats, that'll drop it some more. So will driving styles and conditions. As Bisco said, I wouldn't get concerned unless it stays low in warm weather.
Verrry interesting! Now I wonder what mine will be like in a year if no one rear ends me at a traffic light first.
Mine's showing about 8.3 miles now, was more 9.1-9.5 in the summer. But it's very hard to tell how much range I'm really getting this time of the year as I usually need to run the AC+heat (i.e. ICE) at least once or twice during my commute (4.4 miles each way) to clear the windscreen. Generally the EV range estimation is not particularly accurate. I also have discovered I had at least one seized brake caliper slide pin causing the brakes to drag (possibly mis-aligned caliper piston too) - hopefully when that's all sorted out I might see a slight improvement in EV range and fuel consumption. Not sure what the climate is like in Maryland or how much they salt the roads, but it's probably worth checking out the rear brakes for uneven wear and make sure the slide pins are working and lubricated. They often cause trouble (in anywhere that isn't like California or a desert ) as they are used so infrequently compared to a normal ICE car.
So far, mine generally starts out saying about 11.1-11.7 and adjusts as traffic changes. But this time of year I rarely need either a/c or heat. I do notice that if I turn on the fan when I start out with it at low temp and only two bars for speed, the range instantly drops by one mile. I'm a little surprised that such a low fan speed would make such a big difference. And then, as I continue on, it seems like the distance traveled plus the estimated battery range tend to get back closer to the original range. Kind of like it's programmed to err on the side of safety.
the fan drop is really only an indicator of potential a/c use. no one has ever been able to figure out why they hooked it to the fan, instead of the a/c button.
That makes sense. So, as I continue to drive with fan but w/o a/c, the system gradually begins to adjust its prediction. Seems like a good idea, actually.