I’d love to buy a 20 kWh battery for under $1k. Can you give me a link to what you’re thinking of?

Sorry my wording was ambiguous; when I said "that size" I meant 2.7 kWh, which is what the hypothetical concrete blocks might provide.

Nevertheless, you can get a 16 kWh battery (which is enough for most days of a typical house) for only £2k, which is kind of insane really: https://www.fogstar.co.uk/products/fogstar-energy-16kwh-48v-...

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jmpman 2 days ago | parent | prev [-]

People have been able to get their Tesla Model 3 batteries (75kWh iirc) replaced with used battery packs for around $5k, so quite close to what you’re asking.

	▲	lawlessone 2 days ago \| parent [-]
		Do they get much for the old used battery? the materials are still lithium etc are still inside it, they're just no longer in the right places..