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Message: <blockquote data-quote="mark95476" data-source="post: 5410639" data-attributes="member: 137921">The rear stator temps are high so it could be using some heat from there.Tesla probably did some heat-pump efficiency testing and might have found that pulling heat from a huge sink like the battery during cold temps wasn't the best overall.  People generally aren't gunning it hard in winters so there's not a lot of left-over heat for the battery.It'd be interesting to see if this changes as the battery runs down to 0%.  The battery would be warm so you can pull heat from there and don't care about keeping it warm.  I recall Bjorn having a recent video where he shows the Tesla shutdown steps in a M3.</blockquote>