Tesla: The Ultimate Low-Power Design

Every power-saving trick turns into more mileage, and less time with a plug in the wall.

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When your battery pack alone costs $30,000 and you get 200 miles per charge, you’ve got to be looking for ways to save power. The Tesla roadster is crammed with parts from many Silicon Valley companies, all designed to draw as little power as possible. But there’s still much more work to be done.