webeleafowners wrote: ↑
Mon Feb 22, 2021 6:49 pm
Pre-conditioning is key though. Without it the charge rate would have been much less.
All the Bjorn Nyland videos I have seen of cold-gating Tesla charging are at non Tesla DCFC where pre-conditioning did not occur.
I expect Tesla to eventually give users some measure of control over pre-conditioning to solve this issue. It does not happen in N. America because we don't use generic DCFC
As an aside, cold gating in a Tesla is a bit more evident in the 2021 model years due to the battery heat scavenging the heat pump/Octovalve perform for cabin heating. It's a juggling act that Tesla still has to tweak a little.
I still think the solution is to add a heat reservoir to off-load the battery heat after Supercharging:
The pack holds about 85 Wh/C heat;
A 50% anti-freeze/water holds about 5.5 Wh/C per 10 liters
So a reservoir can take ~ 5C of pack heat