Quote:
Originally Posted by Fuzz
Ya, most of the "cold" weather tests look to happen at closer to -5 than -20.
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There's two causes for the lower efficiency. One is simply that the battery doesn't work as good, the other is that the battery and cabin still needs to be warmed and that takes a lot of energy. Depending on the year of the model 3, it may or may not have a heat pump which makes a pretty big difference in energy use for heating. I suspect though if you have the LFP battery it's a newer model so likely to have the heat pump.
Good video here on performance at -20°F (-30°C)