Preconditioning confusion

[BCondrey]

My recent experience with the scheduling... It was in the 20s overnight, and 32 at 9AM. DM 2023 R1T with large pack.

At 9AM this morning I decided to leave at 9:45AM, and set the schedule for 76 degrees, and to use the charger to assist. Started preconditioning right away. Got in the truck at 9:50AM and it was nice and toasty. Battery was at 51 degrees. Motors were at 80 degrees. No regen limits, no 10 minute efficiency hit. A great feature.

This seems to work as advertised. It will be in the teens later this week when I have to travel and you can bet I will be scheduling my departure!

I do most of my charging at L1. That charging never kept the battery warm enough to allow full regen.

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[BCondrey]

100% confirmed...had a schedule setup for 7am. It's been below 0F for several days now and my garage is uninsulated. Battery would've been probably in the 20-25F realm and I didn't drive for a few days, so it was cold-soaked. When I got in this morning with the scheduled preconditioning the battery was at 51F and no snowflake on the dash. Exactly what Rivian said to expect.

Before this feature existed my battery wouldn't be anywhere near 50F on departure, even if I manually set my charging schedule to try and complete a charge right before I left. Reason...I only do about 30 miles per day and only charge at 24A. There literally no way charging alone would warm my battery enough.

My experience exactly.

 

[Throwdown]

The regen warnings are gone now that it blends the braking, also part of the same update. No more snowflake stating the battery is cold and regen is limited

 

[Throwdown]

Thanks everyone for the responses. I am still unclear whether it will pull shore power when the process is started manually, or only if it is scheduled. It really shouldn't have to be this confusing!

As far as I can tell by my own test it only pulls shore power when the schedule is set and that option is selected and saved.

 

[cwintermeyer]

New video from Rivian Dad today...


EDIT: Here is his RF thread about it.

 

[fleming23]

Only thing I wish they would have done differently is make the temperature set-point auto instead of heat or cold. There are times when I might need heat and other days when it should cool. Small annoyance.

 

[R.I.P.]

Only thing I wish they would have done differently is make the temperature set-point auto instead of heat or cold. There are times when I might need heat and other days when it should cool. Small annoyance.

Unless I misunderstand your point, it is autoset, set at the temperature you want, and it will either heat or cold to get there.

 

[ohseedee]

I just turned off my scheduled pre-conditioning as it's draining way too much battery for what I need it to do. For example, I have it set to pre-condition at 7:40am, but according to Home Assistant, it started pre-conditioning at 6:50 and kept my cabin 72 degrees for a full 50 minutes before I needed it to! I didn't have it plugged in and saw my battery drain 1.4% during those 50 minutes! While I'm not sure if it's warming up my battery or not, and I'm not sure what my battery temp was when it started to pre-condition, I do know my cabin was 45 degrees and assume the battery was no less than that, so cold, but not that cold.

I just need my cabin warm for my short 30-minute drive in the am. I'm going back to my old method of just hitting the climate button on my app a few minutes before I get in the car (all it needs to get to 72 degrees).

 

[fleming23]

Unless I misunderstand your point, it is autoset, set at the temperature you want, and it will either heat or cold to get there.

It does not. I thought the same, and it did not work today because I had the snow flake selected at 70 degrees.

 

[R.I.P.]

It does not. I thought the same, and it did not work today because I had the snow flake selected at 70 degrees.

As I suspected, I misunderstood your meaning... you were referring to the ap.... gotcha.

 

[Riviot]

Test#2 results (sorry no pics, long day):

Left outside to get battery from 47 to 40°F yesterday, put in garage on charger after dark.

Charged at 130am for short duration to get battery from 69-71%

Precondition set for HI at 8am

0716: cabin 37°F / 231 miles / 71%
0809: cabin 66°F / 226 miles / 70%

Battery was 46°F when I got in shortly after. Unsure what the temp was at 0716 but something got it warmed up since last night. Garage temp is sub 40s at the moment.

It definitely works, but to what extent, ??‍

 

[R.I.P.]

Test#2 results (sorry no pics, long day):

Left outside to get battery from 47 to 40°F yesterday, put in garage on charger after dark.

Charged at 130am for short duration to get battery from 69-71%

Precondition set for HI at 8am

0716: cabin 37°F / 231 miles / 71%
0809: cabin 66°F / 226 miles / 70%

Battery was 46°F when I got in shortly after. Unsure what the temp was at 0716 but something got it warmed up since last night. Garage temp is sub 40s at the moment.

It definitely works, but to what extent, ??‍

It works to the extent that it was designed to, by a bunch of really smart engineers.

Rejoice!

 

[Franksmartin]

This is incorrect information that keeps getting passed around. Even prior to the latest update, manually starting the climate control will also trigger battery conditioning if the vehicle deems it necessary.

You can watch this happen yourself, by starting the climate control manually in the vehicle a period of time before leaving. You can then watch the motors heat up as it starts to put some heat into the battery pack.

In my observation, It has been pretty inconsistent on when the vehicle chooses to do this. Sometimes it will trigger heating under 50°, it will usually trigger it under 40° (actual battery temp).

Not for me I preconditioned in the schedule and battery stayed right at 30 degree. Didn’t move one degree.

 

[Franksmartin]

What you are seeing here is 100% expected behavior. If the pack is between 40 and 50°, it will not normally waste energy to try to get it warmer unless the vehicle is headed for DCFC.

Yes, there are people that feel the battery should be warmer, but most of us in the business, to include Rivian, disagree.

My battery was 30 degrees before and after scheduled departure.

 

[not_a_car_guy]

It does not. I thought the same, and it did not work today because I had the snow flake selected at 70 degrees.

I thought the "snowflake" and "three red wiggly up-arrow" buttons only impacted whether you wanted to ventilate or heat the seats, not whether you wanted heat vs. A/C in the cabin.

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