Why don't we swap out rechargable batteries for laptops, cell phones and electric cars ?

Why don't we swap out rechargable batteries for laptops, cell phones and electric cars ?
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1 Answer

Answer :

A battery pack of a Tesla weighs 1200 pounds. In order to swap an empty pack for a fully charged one you would have to bring it with you. That’s another 1200. Which greatly would reduce your mileage, I’m afraid. Which would mean taking an ever bigger, thus heavier battery pack still. Which would reduce your mileage even further. Which would mean….......
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