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Do i need to "warm up" batteries before going WOT?

jebinc

Endlessly Vibrating MS PLAID
Jun 19, 2019
10,384
15,799
Seattle area
Coming from Turbo ICE's car, going WOT with a cold engine / cold oil is a big no-no.

Do i need to drive for a couple of miles before opening the car up?

For maximum current flow out of the battery to the motors, they have to be warm. Same for super charging, high current flowing in (to the battery) from the opposite direction.
 

kbecks13

Active Member
Dec 27, 2017
1,975
2,430
SoCal
For maximum current flow out of the battery to the motors, they have to be warm. Same for super charging, high current flowing in (to the battery) from the opposite direction.

Correct, but the driver does not need to treat the car any different than normal. It will limit itself via software, so you can go crazy with your driving.
 

kbecks13

Active Member
Dec 27, 2017
1,975
2,430
SoCal
I don't Supercharge that often, but I finally saw that "Preconditioning battery for supercharging" message today...

You were probably routing to a Supercharger with the cars navigation system which does that automatically to prepare the battery. Preconditioning warms the battery to a fairly warm degree (i.e i've seen it precondition on a hot day) but isn't absolutely necessary, it just means faster charge times (again being restricted by software)
 
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You were probably routing to a Supercharger with the cars navigation system which does that automatically to prepare the battery. Preconditioning warms the battery to a fairly warm degree (i.e i've seen it precondition on a hot day) but isn't absolutely necessary, it just means faster charge times (again being restricted by software)

You are absolutely correct !!! My wife was playing around with the map while we had a destination set on a road trip. She tapped the "T" on the nav map and accidentally routed us to it. Decided to stop and SC anyway (since it had power still) as we were told PG&E had rolling blackouts still. It's only the 3rd time I've supercharged as I usually don't drive that far from home in the 3.
 

dvaz

Member
Oct 11, 2019
60
56
CA
For maximum current flow out of the battery to the motors, they have to be warm. Same for super charging, high current flowing in (to the battery) from the opposite direction.

Correct, but the driver does not need to treat the car any different than normal. It will limit itself via software, so you can go crazy with your driving.

Exactly the answers i was looking for.
Thanks!
 
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pre warming the battery is a good idea especially if it's cold out. On a model 3 at least the motor is used to
warm the battery so you can warm them at the same time.
It isn't the motor. It's the inverter which is located in the motor assembly. The motor does not need to be warmed but as it is doubtless on the same coolant loop as the inverter it will get warmed too.
 

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