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A comment on World’s largest battery maker announces major breakthrough in energy density. Parent comment

Re:World’s largest battery maker announces major breakthroug... by kwhitefoot on Friday April 21, 2023 @09:58AM (#35653840)
Maximum heating power in my 2015 Tesla Model S 70D is 6 kW. Travelling for 100 km at 100 km/h costs about 25 kWh. I drive in shirtsleeves and barefoot in the Norwegian mountains at -20⁰C and the heater doesn't seem to be running hard. So unless you are traveling in severe arctic conditions the heater really isn't more than a few percent of the load.

Teslabjørn has a video where he turned his Model X into a sauna getting 40⁰C inside while it was -10⁰C outside.

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Re:World’s largest battery maker announces major breakthroug... by steveBK123 on Friday April 21, 2023 @10:26AM (#35654245)
Had a model 3 for 4 years, have another EV now. It really depends on the type of driving. Sure, if you are making a long road trip at high speeds then its probably negligible though still noticeable.

But being in Northeast US with constant traffic.. I used to have to park outdoors so the car would get cold soaked down to 20F in winter, and never really have sufficient time to warm up unless I was going for a 1hr+ drive.

Winter driving local roads, below-25mph stop&go, 2-5mi trips running errands.. Could see some really crazy consumption numbers pop up like 500-800Wh/mi+ versus the rated 250Wh/mi. Now it doesn't necessarily amount to much because it's on short single-digit mile trips, but it does happen. This stacks with the general cold weather efficiency losses of EVs..

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Re:World’s largest battery maker announces major breakthroug... by kwhitefoot on Saturday April 22, 2023 @06:29AM (#35665071)
> never really have sufficient time to warm up unless I was going for a 1hr+ drive.

That's true. But I've never had anything like 800 Wh/mile in my Model S 70D not even pottering around at -20°C

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