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2017 Bolt EV Premier
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1,955 Posts
You鈥檒l usually see some battery conditioning going on while charging if temps are below or near freezing. While driving, it depends on a number of factors, because the battery will warm up a bit just from driving, especially at higher loads.
 

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2018 Bolt EV Premier
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1,369 Posts
There's a chance that the battery conditioning will kick in if the battery's temperature is no longer within the roughly 40-100F range. The criteria for its activation also seems to depend on whether it's in a stored (parking) or used (driving) state. Don't worry if you don't see any. The car knows when to use it.
 

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2023 Premier, Bright Blue Metallic
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113 Posts
A. Congrats on your EUV, I got the same model just a week before you. B. Congrats on driving it even more than I鈥檝e driven mine. I鈥檓 sitting at 5100 milea right now (mostly typical milage for me with my daily commute 4 days/week) and I thought I had a lot! C. I鈥檝e only seen mine kick on once or twice and it was when we were hovering around 0 F and just under, but only when my car sat outside for a while in those temps. From what I鈥檝e seen in the forum, and in my own limited experience, I think what you鈥檙e seeing is pretty normal.
 

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2023 Bolt EUV, 2021 Kona Electric
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3,439 Posts
This is what happened when I left in the AM @ 5F and drove 55 miles. Even here it didn't need to run BMS. This was pre-warmed while plugged-in before leaving.

Font Sky Electronic device Screenshot Circle


So even in relatively extreme cold the car doesn't need to run battery heat while running.
 

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2023 EUV 2LT Ice Blue
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119 Posts
I have wondered about this too. Similar results to RacerX00 but at 1-19 deg F last week. I did see a 1% battery conditioning on one drive last week with single digits F -- back to 0% ever since. First time I saw that in 5 weeks/2500 miles since purchase. I do charge "late as possible" prior to AM departure so preconditioning on AC all the time.

Overall very pleased with cold weather range performance, even if never over 200 miles. Looking forward to May-June results prior to Summer heat.
 

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2022 Bolt EUV Premier: sold back to GM Jan 鈥23
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2,838 Posts
In the 17 months I had my EUV, I saw the energy display showing battery conditioning exactly once. That is living in the Seattle area, with occasional temps dropping below freezing but mostly in the mid 30s to 40sF in "cold" weather. The car was always garaged when home, but did sit outdoors overnight on a couple of occasions, and of course sat in the parking lot at work all day if I went into the office.
 

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If you are plugged in, it will condition without registering on the screen, It only show's up there when it uses battery to do it. It was -20C / -4F here on Friday and I had 3% on the screen from the car sitting for a bit unplugged. after that never had it again as I was charging every time I stopped but the car was definitely running the BMS as it got even colder on the drive -29C / - 20F but never had conditioning show a % again.
 

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2023 EUV Premier Bright Blue
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2,855 Posts
If you are plugged in, it will condition without registering on the screen, It only show's up there when it uses battery to do it. It was -20C / -4F here on Friday and I had 3% on the screen from the car sitting for a bit unplugged. after that never had it again as I was charging every time I stopped but the car was definitely running the BMS as it got even colder on the drive -29C / - 20F but never had conditioning show a % again.
I finally noticed for the first time, some battery conditioning while not plugged in, a few days ago. As you can see, there was lots of human conditioning too. :D

We got our EUV in late September, so at the moment our lifetime efficiency kind of sucks.

Organism Font Astronomical object Line Screenshot
 

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The battery weighs nearly 1000 lbs. It's a lot of mass and retains a lot of heat. It takes a long time to bring it down to 0C (where the heater wants to kick in) even if it's below 0C outside.
yep, it has to sit a while. I saw the conditioning from it sitting for 16 hours at -20C and even then it was only 3% of the battery.
 

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This is an interesting observation. I know in the Tesla, you can choose to precondition the battery to enable faster charging at their superchargers, either as a scheduled event, or automatically upon choosing a certain supercharger to use from the map. To date, I've not seen any "on demand" battery conditioning in the EUV... 馃し鈥
 

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Honestly, I was thinking about putting 2 switches (heater & pump) in for pre-conditioning and watching battery temps in Torque. I would like to see what kind of charge levels I could reach @ DCFC, in cold weather.
 

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If the care is unplugged, and SOC is > 30% and the battery [not the air] gets down to about 36-37F, it will suck juice from itself to heat, pulling about 2kW when it's heating. Depending on weather, it could be as little as 1 kWh or as much as as several per day. Saying it used xx% isn't useful [at least in my 2017], since that's % of kWh used total. 10% when only 5 kWh have been used [total -- cabin heat/cool, driving, and battery condx] is almost nothing, but if 50 kWh have been used since last full charge, it's a lot more.
 

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This is an interesting observation. I know in the Tesla, you can choose to precondition the battery to enable faster charging at their superchargers, either as a scheduled event, or automatically upon choosing a certain supercharger to use from the map. To date, I've not seen any "on demand" battery conditioning in the EUV... 馃し鈥
No on demand preconditioning button. But below is an interesting experiment done on VW ID4s. 鈥淵o-yoing鈥. Pretty dramatic results. But any attention you get from the police is your responsibility 馃懏鈥嶁檧锔.

 
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