TheCats
Well-Known Member
You want the heat pump for both heating tasks.I'd like the pro-heat pump people to chime in, because there seems to be confusion (including my own). You want the heat pump to heat the a) cabin, or b) battery?
Even in the mildest parts of southern California you'll need to heat the battery before DC fast charging. The optimal battery temperature for charging is likely 35-40C, with some variance with the undisclosed details of the battery chemistry and structure. Charge acceptance and cycle wear will be degraded outside of that range.
Most people, even in California, don't live in the mildest parts. A heat pump isn't a make-or-break feature, but it's worthwhile efficiency boost.
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