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Car feels considerably slower (less responsive) when cold

March 2019 TM3 AWD+

Always felt the car a bit sluggish / heavier in the mornings.
Never had this feeling with my ICE cars.
Later during the day - back to normal, quick and sensitive to the slightest accelerator movement.

I tested with Dragy 0-62 mph (0-100 km/h) :
4.1 s / 79 % SOC, outside temperature 45F (8C) (battery cold)
4.3 s / 29 % SOC, outside temperature 60F (15C) (battery warmed up - highway drive back to home)

Even though Dragy shows differently I still felt the car much more lively when warmed up (despite the lower SOC).

Has anyone had a similar experience and do you have any possible explanations ?
Thanks
 

Sam1

Active Member
Sep 11, 2019
1,561
1,608
NV
Yes this is extremely well documented and completely normal. There is considerably less power when the battery pack is cold (as indicated by the dashes/dots on your power meter). Also, 15C pack temperature is not really warmed up. More like 20C+ to truly be "warm".

This is just the nature of lithium batteries.

Heck, I won't do any timed racing or speed logging unless the car is over 40c/105f minimum
 
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