Quote:
Originally Posted by Ralph Sir Edward
As for tow-behind battery trailers...
Since 80% of the cost of an electric car is batteries, that tow behind will probably cost 60% of the car itself... (and a prime target for theft.)
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That 80% cost is based on
present battery technology, which will certainly come down as batteries become more ubiquitous and more efficient; and the trailer can always be preset to work only with specific vehicles based on their VIN, removing most of the value from theft*. If you aren't worried about your car being stolen, similar theft deterrent tools should work for the trailer.
(*Hmm... it would probably be some sort of DRM system...)