Conditioning the traction battery

[porsche_coyote]

Completely agree with you - it will take power from the mains to warm the battery up by anything other than a degree or so when the car's stopped. It's just trying to work-out how to instigate the battery preconditioning. It may be that it only works when the battery temperature is really low.

Most cars will only precondition with a departure timer set, which makes sense given that it can take a fair amount of energy to hold the battery at the ideal temperature.

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[Doc B]

Most cars will only precondition with a departure timer set, which makes sense given that it can take a fair amount of energy to hold the battery at the ideal temperature.

Yup, but in that case I would have thought that it should precondition the battery when you precondition the interior temperature without using a timer on the basis that you would not be preconditioning the interior if you weren't about to use the car. I could ask my dealer, but that would be 10 minutes of my life I'll never get back.