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When track mode is first engaged you can hear a whine which I assume is it heating the battery.

Can someone explain to me how peak performance in the model 3 battery works? It needs to heat up to a certain temperature to lower impedance -- do we have any indication of the battery temp from in the car (other than the ODB II method)?

Then, I assume, once it gets hot enough it can quickly get too hot, which is where track mode will over clock the AC to try and cool it down?

Again, is there any indication to know when the car is in peak battery temperature range?

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