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A comment on Tiny electric motor can produce more than 1,000 horsepower. Parent comment

Re:Tiny electric motor can produce more than 1,000 horsepower by huijzer on Monday November 03, 2025 @02:31PM (#45803327)
Exactly. Main problem is battery energy density. Cars can drive about 20 kilometers on 1 liter of gasoline. In comparison, Tesla's 4680 cells are at about 272-296 Wh/kg and CATL's Kirin Battery at about 255 Wh/kg. A bit efficient EV often uses 200 Wh/km, so for 1 kg of battery the electric vehicle can only reach 1-2 km. An order of magnitude difference. Theoretically, batteries could go to 1000 Wh/kg some day, which would mean about 5 km per 1 kg of battery assuming all else remains equal.
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Re:Tiny electric motor can produce more than 1,000 horsepower by mattlutze on Monday November 03, 2025 @02:39PM (#45803443)
https://ev-database.org/cheatsheet/energy-consumption-electr...

The Model 3 manages < 140 Wh/km, and many seem to be under 150/160/170.

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Re:Tiny electric motor can produce more than 1,000 horsepower by murkt on Monday November 03, 2025 @03:26PM (#45803980)
That’s still around 2 km per kg of batteries.
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Re:Tiny electric motor can produce more than 1,000 horsepower by dotancohen on Monday November 03, 2025 @06:19PM (#45805673)
I'm at 115,000 km, at 133 Wh/km since the last (inadvertent) trip reset. The previous one (for the life of the vehicle) was at a similar number.

This is on a 2022 Long Range Model 3.

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Re:Tiny electric motor can produce more than 1,000 horsepower by cwmoore on Monday November 03, 2025 @02:36PM (#45803412)
Oranges to apples so long as electron mass is fixed and reserve currencies fluctuate.
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