Apparently some people aren't clear as to what is going on.
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Apparently the batteries are exactly the same. The only difference is that one was de-tuned and sold for $10,000 less than those that weren't de-tuned. But the batteries are the same. They are the same batteries in the same model of cars. That is why Tesla could remotely re-configure the software. The battery always had the capability that Tesla "hid." 
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So is someone being ripped off for $10,000 because they are not getting a "bigger and better battery".....but the exact same battery that simply hasn't been manipulated and de-tuned via software manipulation? 
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Is "computer software manipulation" a $10,000 cost? No, because the manipulation is apparently being done not to make the battery more efficient, but to make it less efficient.
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Tesla isn't charging $10,000 more because they built a better battery. They are charging $10,000 less because because they manipulated the batteries performance to perform less.