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Who to believe, Researchers at the Korea Advanced Institute of...

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malmanu

16,368 Posts.

755

05/08/24

23:19

Post #: 75082523
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Originally posted by Giobria: ↑

Absolute moron.
Did you read the first comment in that article? No? Here it is:

Homer10
April 26, 2024 at 6:35 pm
OK, whenever I hear something like this, I have to do the math. If a Tesla S3 has a 40HWh battery, and you want to charge it in a few seconds (Let’s say 5 seconds). Well, you can’t get more out of a battery than what you put in. So, to charge a 40KWh battery, you need to put in 40KWh of power to the battery to get 40KWh out. So to put 40KWh into a battery in 5 seconds, you have to cram an amazing 28,800KWh of power into the battery for 5 seconds to fully charge the battery. Yeah, that’s almost 29 MEGA WATTS! I’m thinking that the charger cable would be turning into plasma at that power level. It wouldn’t be good. But this is also around the same amount of power consumed by a small city briefly. 29MW/240Volts yields a current of 120,000 Amps at nominal voltage levels (WOW!). Where could you get a connection that could pass that kind of current? So, my conclusion is that this is patently impossible to do. Physics just won’t allow this to happen without a large fire occurring.

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Who to believe, Researchers at the Korea Advanced Institute of Science and Technology (KAIST) or some Ignoramus who has no idea.

PLS Price at posting: $2.83 Sentiment: None Disclosure: Not Held
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