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With a small but significant difference: it's in production already.

CATL isn't the first to put sodium-ion batteries into production, but they are the first large established manufacturer to do so, so chances are they won't go bankrupt before production ramps up to general availability.

where can i buy one ?

https://peakenergy.com/

They might be a bit bigger than you want for home.

There is no buy button on that website.

There is also no Buy button for a Tesla Megapack on a consumer website, yet they are still being deployed.

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