Jess: didn't you have to drive at least a few miles to get to the Supercharger? Trying to figure out how you arrived with a cold pack.
In my case I stayed about 3 miles from the Supercharger and it was 22F.
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Jess: didn't you have to drive at least a few miles to get to the Supercharger? Trying to figure out how you arrived with a cold pack.
Interesting question (to me at least): was this with climate control on, or off? I thought the diagnostic screen showed the heat pump for battery pack heating and cabin heating to be linked, and am wondering whether there is any benefit to running climate control while the pack is heating up?
Would the pack have warmed faster if you drove around for 10-20 minutes before attempting to supercharge?
See the Gigacapacitor thread for a discussion of how supercapacitors/ultracapacitors could help address the problem being discussed here. They are much less temperature sensitive than lithium ion batteries and have a greater power density, so could serve as a buffer between large amounts of electrical current (from Superchargers or full regen braking) and the battery at times when the battery can't accept that much (primarily when the battery pack is cold or when it's nearly full). Likewise, they could dump larger amounts of current into the motor than the batteries are capable of releasing for short bursts of acceleration. Seems like a natural upgrade option for future generations of Teslas when a higher degree of convenience and longer battery lifetimes are desired.
Would the pack have warmed faster if you drove around for 10-20 minutes before attempting to supercharge?
In anticipation of winter - in that we'll be heading back to Alaska for May and thenceforth - this thread appears, unfortunately, to be timely for me. Is there not a simple means to force a batterypack warmup? That would seem to me to be an easy task for the cars' systems to accomplish.
I couldn't risk it not charging, especially if the 12v battery froze. It was 11 degrees F out.
In anticipation of winter - in that we'll be heading back to Alaska for May and thenceforth - this thread appears, unfortunately, to be timely for me. Is there not a simple means to force a batterypack warmup? That would seem to me to be an easy task for the cars' systems to accomplish.
Hmm... full throttle acceleration onto the highway... get off the next ramp and turn around... repeat until full regen is available!
Doesn't heating the cabin also warm up the battery pack? If so, couldn't he have just used the phone app to start warming the car 30 minutes before he was going to drive it to the SC?
Yeah. Me either. I guess I should have known, and it makes sense but I never considered it. Glad the OP brought it up for this reason. The few (3) times I've supercharged I drove a long distance to the Supercharger. Good to know for planning purposes if applicable.
Isn't this an opportunity for Tesla to introduce a new message on the car's display? It could stating something like "Charging at a reduced rate due to low battery temperature. To avoid this, please preheat the car when the outside temperature is below 40 degrees Fahrenheit."