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Message: <blockquote data-quote="slcasner" data-source="post: 4158189" data-attributes="member: 6840">The first battery was more complicated than the production design.  The sheets at the two ends were smaller than the ones in the middle because they had to fit around the wheel well.  That problem was avoided in production by stretching the chassis 2 inches.  The assembly technique for the sheets was also much different than in production.  If my visual memory from 15 years ago is intact, it involved PCB material.  And there probably was no liquid cooling.The mule also incorporated the analog PEM made by AC Propulsion.  I suspect that all the components were cannibalized in the next stages of development.</blockquote>