Battery Pre-conditioning question

[aahann]

You can preheating the battery by cold weather by warming-up your interior before starting a trip. As you can see on the picture (the red icon on the right, shows that the battery preheating has been started (outside temperature was below 0° celsius).

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I’m getting the impression that turning on climate before departure warms the cabin but also indirectly warms the battery because it draws current from the charging source to run the heating - not because it’s blowing hot air on the battery !! Two birds, one stone.

 

[PatrickCH4313]

I’m getting the impression that turning on climate before departure warms the cabin but also indirectly warms the battery because it draws current from the charging source to run the heating - not because it’s blowing hot air on the battery !! Two birds, one stone.

This is correct. And beside this, the regen is greater when starting driving at low temperature.

 

[pt19713]

I’m getting the impression that turning on climate before departure warms the cabin but also indirectly warms the battery because it draws current from the charging source to run the heating - not because it’s blowing hot air on the battery !! Two birds, one stone.

Sort of.

The front and rear Stator motors are generating heat, approximately 3.5 kW/each. The coolant picks up the heat via conduction and the coolant is pumped through the battery pack. The Stator motors can get up to ~ 200F max, about 190F in 10 minutes.

If you're not plugged in, the car will need about 7.75 kW to heat up the Stator motors, run the heat, and a few other items that draw energy. If you're plugged in with a HPWC, the 11 kW will be sufficient to power the system. If you have a 40A power source, the 9.6 kW will be sufficient. If you have a 32A source, the 7.6 kW might be able to power it but it may draw from the battery. Anything less than 32A will draw from the battery.