The prices Musk is quoting is a full 10x less than analyst estimates of what those batteries should cost.
Can we see some links? These claims don't make sense to me. Musk didn't achieve any breakthroughs in battery technology.
It's improvements in manufacturing, not underlying technology, that Musk is claiming is responsible for the decreased costs. My analyst source was not online so I can't easily provide a link..
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
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