I have a question for cold weather folks: how fast does the battery heater (cold weather package) deplete your traction battery when parked outside at subzero temps, unplugged (e.g. airport parking lot)?
...mentions battery depleting from 8 bars to 4 bars over 2-3 weeks parked at -18C/0F. But the battery warmer doesn’t even kick-in until below 0F, so maybe that’s not a good test.
I parked in the driveway at 95% dash SOC at Friday noon (probably 23.75 kw-hrs capacity). Saturday noon, the dash read 92%, after 24 hours parked at -10F (hi/low avg). But LeafSpy said 67% SOC and 18.8kw-hrs capacity (very different). If I trust the dash, it only lost 3% charge (maybe 0.75 kw-hrs). If I trust LeafSpy, it lost maybe 4.95 kw-hrs (about 20% of charge). The maximum possible loss should be 300 watts for 24 hours, or 7.2kw-hrs.
I noticed that the warranty excludes damage caused by “Storing a vehicle in temperatures below -13F (-25C)
for over seven days“, which is a bit unclear: is that storing unplugged, or also plugged-in? And if unplugged, does that imply that a 100% charge should keep it from freezing for up-to 7 days at temps above -13F?