Is this normal? Motor temp skyrocketing

[Gimmeoneofeach]

Is it normal for the motor temperatures to be this high when charging? Or is something amiss. I am at an evgo fast charger pulling 100 KW at the moment.

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[COdogman]

Nothing to worry about. It will go back down during the course of your charging session.

 

[Charged]

Running the motors hot is a way to generate heat (in the absence of a heat pump) that can be used to warm the batteries quickly, making them charge more efficiently. See this thread for some detailed discussion: https://www.rivianforums.com/forum/threads/yikes-overheating-motors.20633/

 

[Gimmeoneofeach]

Great to know! Thanks for the feedback and carry on!

 

[cjust2006]

Several threads about this. Just battery preconditioning.

 

[zefram47]

Did you not navigate to the charger? That would've preconditioned the battery (also using the motors for heat) vs pulling in with an ice cube for a battery and then having to heat it while charging at lower speed before ramping up again. While preconditioning, it will target around 76F battery temp and then get max performance on the charger.

 

[Magicbus]

I'm trying to understand how electric motors are generating so much heat while parked at a charger without the benefit of having been instructed by the navigation system to precondition the batteries. That image makes me wonder if you have installed the previous software update that fixed an issue with the display of temperature information.

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