Well, it's more nuanced than "if under 11% then sad battery". I've watched internal behaviors on CAN while road tripping
The default temperature is 87f (or 86f? keep getting the two twisted in memory). This is the target it will try to maintain by isolating the battery loop, adding the motor(s) to the loop to absorb waste heat, or using the radiator to dump heat. That's the standard "passive" target.
It'll bump up the passive levels if navigation enters a "supercharging mindset". The logic behind that is unreliable beyond just navigating to the next SC. If your active navigation destination is a Supercharger, it will be in "supercharging mindset". The unreliable part is that, sometimes, you can have a Supercharger ahead of your immediate next destination, and it'll still precondition for the upcoming SC. If the SC is >1 stop ahead (not the next stop), it won't run, normally - but similarly, sometimes for no discernable reason, it'll stop preconditioning or not start at all - so it's somewhat unreliable.
The text on the screen saying "preconditioning battery" ONLY seems to appear when ActiveHeat is active - when it's actively heating the battery.
If there are other cases where it IS preserving heat (supercharging mindset) but not actively heating, it won't say "preconditioning battery" - nothing will be shown, but the behavior is still preserving heat.
When preconditioning, it seems to target 100-110f, maybe higher - but depends on SOC% as to what temp it goes for.
Supercharging itself also heats up the battery pretty quickly, so if it's 250kW, you really don't even need preconditioning if you're arriving at like 5%.
The worst thing you can do is have no navigation destination set. Then, it'll target 87f, and dump any preconditioning heat energy on the ground as you drive!
And @harumio also kinda implied we might only need one user to volunteer their account
Given my ability to buy as many Gen4 ECUs as I like, maybe I might have good luck there as a gateway as well?
).
At least it works.
