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Originally Posted by RedDevil
Modularity adds to the cost. Batteries need to go into the car and ideally stay there for its life.
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Ideally, yes. In the real world, not hardly - unless you're thinking of the lifetime of a car as maybe 10 years at most.
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Compatibility is a reason to reduce the options. Even a modular battery would need different control electronics depending on its capacity.
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Sure, but the interface and the form factor of the modules are universal. Just like disk drives in your computer: you can plug in a
bigger larger capacity one, or even one that uses an entirely different technology (rotating disk vs SSD), and it just works.
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To no avail, as the Commodore 64 blew them away in sales. At one time the C64 sold more than all other microcomputers combined.
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How many was that? Humm... 12.5 million, per Wikipedia:
https://en.wikipedia.org/wiki/Commodore_64 Then along came the IBM PC with its completely open architecture, C64 sales tank and disappear completely by 1994, while PC clones were selling around 100 million units per year:
http://www.retrocomputing.net/info/s...tal_share.html