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That might happen long term but short term the lack of production capacity is the problem. And right now a lot of companies are investing in vastly expanding production capacity for lithium ion batteries. We've simply never needed batteries at this scale before EVs started happening.

Tesla seems early in the grid storage market. Probably some companies are trying to come up with cheaper ways to do that. So, long term, I think cost will go down by quite a bit. Ten years from now, there will probably be a few companies cranking out cheap batteries for grid and domestic use that are optimized for $/kwh instead of kg/kwh.




> We've simply never needed batteries at this scale before EVs started happening.

Is that really true?

There a a LOT of lead acid batteries out there, considering there's been at least one sold alongside nearly every internal combustion engine larger than a handheld tool.




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