Reduced Battery Life

[Somm]

Actually the Tesla web site used to have an interactive thing which showed range for each battery size where you could adjust for temperature. I haven't looked recently to see if it's still there.

The interactive tool is still on the Tesla site. Unfortunately it only goes as low as -10C and is quite optimistic - for my 75D, it indicates a range loss of about 12% at -10C with heater on. My experience was a 50% loss at -15C. As with many EPA type test results, YMWV!