Thanks for the replys.
The charger in question is about 2 hours away, so the battery would never be in a "cold" state. I've never done the drive/charge in the winter, so I don't know if the charge rate would be impacted, I would assume it would and in that situation, I'd allow the car to pre-condition the battery.
Last week I charged the car at this location. I deliberately did not put the charger location into the nav, so the car did not pre-condition. Temps were in the low 70s, car had been driving for about 2 hours and there was no "Cold battery" indicator. (why can't it display the temp instead of the "idiot light"???). SOC at start of charge was 35%.
Charge rate was the same 47kW as it had been in the past. My app did not show the battery heating icon at first. Towards the end of the session the battery heat icon came on. The charge rate was still 47kW. I left with SOC of 80%. Took about 40 minutes.
So I'm still not sure if it's worth the juice to pre-condition, but it's probably a wash seeing as how the car still used some to condition the battery. Doing it ahead of time might same a few minutes though.