Thank you, extremely helpful! What was the outside temp at the time?Don’t have a 40, but rather a 50. But there shouldn’t be any difference. Hooked up an obd2 dongle yesterday, and the carscanner app.
vehicle was parked in a 10C garage, having sat for about 5 hours. Battery min temp was at 0 at the start of the trip, max was 2C. For those not familiar, the app measures each cell in the battery independently, giving you the temp of the lowest one, highest one, and the average across all. But it’s always the extremes that the BMS bases it’s decisions on so as to not damage any part of the battery.
after a 20 minute dive through the city with maybe 3 or 4 lights, but mostly at 80 kp, the min temp of the battery didn’t get even 1 degree warmer. Not a scientific test by any means, but I think what it does mean, is that cold has a much greater effect on the batteries and range than we’d think. And driving the car doesn’t heat it up in the cold very much at all.
will try and do a longer test this weekend with some highway driving.