“BYD also claims to have addressed the well-known issue of lithium iron phosphate cells losing performance in cold temperatures. After the cells were stored for 24 hours at –30 degrees Celsius and therefore completely frozen, charging from 20 to 97 per cent reportedly took just twelve minutes.”

As the US sabotages the globe’s fossil fuel infrastructure at the behest of Israel, China continues to build the future that will replace it. One by one, the naysayers’ objections to EVs melt away. Can’t do cold climates, they said - fixed. Can’t cope with long journeys, they said - fixed.

As Napoleon once famously observed, ‘never interrupt your enemy while they’re making a mistake’. China must be thinking that, as the US helps hand it total dominance of the 21st century energy infrastructure.

10–97% in nine minutes: BYD presents second generation of Blade Battery

  • stoy@lemmy.zip
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    4 months ago

    Ok, so charging from 20 to 97% took 24h and twelve minutes.

    Not really sure that is a huge win…

      • stoy@lemmy.zip
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        4 months ago

        I missread the post, made a joke, people got mad, I doubled down, I got insulted, the issue was explained in another response, I admitted I was wrong, mods came in just as I had posted an explanation.

        Eh, minor drama, though I am still annoyed about the insult.

    • TowardsTheFuture@lemmy.zip
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      4 months ago

      If this is some sort of joke I am confused why. Idk if you can’t ready but weirdly you don’t need to store the car in a -30c freezer for 24 before charging it every time. It was 12m from frozen, down from the normal 9m when not frozen, showing it being cold does not destroy charging performance (though that is 133% of the normal time)

      • stoy@lemmy.zip
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        4 months ago

        No joke, that is exactly what they did according to the post.

        They stored the batteries in minus -30c for 24h and charged them for 12 min.

        The post made it seem like that was supposed to be a miracle hack to fast charging.

        • TowardsTheFuture@lemmy.zip
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          4 months ago

          No… dude… they are saying at normal temperatures it fast charges from 10-97% in 9 minutes.

          The frozen bit was them showing even completely frozen the fast charging still works in an acceptable amount of time. (12m, only a 33% increase in charge time)

          • stoy@lemmy.zip
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            4 months ago

            Ah, finally a good explanation!

            Thank you, I can see my mistake, sorry about that!

    • ThunderWhiskers@lemmy.world
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      4 months ago

      You do understand the 24hr was the freezing process, after which they tested the battery’s charging capabilities?

      • stoy@lemmy.zip
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        4 months ago

        Perfectly, but the post read as if they had discovered a new fast charging hack by freezing the batteries.

        Which made it seem quite silly.

    • takeda@lemmy.dbzer0.com
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      4 months ago

      Storing batteries for 24 hours in -30C was to replicate a harsh winter time. It isn’t necessary for charging.