Have been watching the battery temperature conditioning via the juicebox data logging.
The energy used for each warm up cycle is ambient temperature dependant
When it was 30f it took about .8kwh per heater cycle
When in the 20f range I saw as much as 1.37 kwh
The frequency of conditioning cycles is also variable based on temperature but have not had enough just sitting time for the car to get a good 20f frequency of cycles yet
To see the conditioning energy on the circle graph it needs to be over 1% of the energy used ( minimum display resolution)
Have been leaving the car plugged in with hilltop mode on so each morning the circle graph is reset to 0 on all of the three variables.
After charging and getting several conditioning cycles with the car plugged in, I let the car sit for a day and a half unplugged.
I had seen the approx 6 hour heat conditioning on the plugged in graph from the jukebox so
I knew that 4 -5 .8kw cycles should have happened during the unplugged time.
On powering up I saw no conditioning time on the graph or the % until I started driving.
( can't divide by zero ? )
After driving a short distance and running the heat for a short trip the conditioning % of the total kWh used was close to the 6 kWh that I would have used for conditioning when plugged in.
I also looked under the hood with my thermal camera right at the end of one of the cycles.
The heater hose SHOWED around 70f while ambient was at 20f.
Going to be in the teens next few days and I Will repeat the experiment
Photoshttp://99mpg.com/blog/finally-i-have-an ... hevy-bolt/
May take out the back seat so I can get the actual battery case temperature