Is there any public data on LEAF operation at -20C? We routinely see those kinds of temperatures in the winter, and I am trying to understand the viability of a LEAF.
My understanding is that newer models have heaters for the HV battery, which would improve performance, but may require keeping the car "plugged in" overnight.
My understanding is that in general, power losses are about 50% for every 10F battery temperature drop below a certain point (approx 0C).