Filed under: Hybrid , Sedan , Plants/Manufacturing , Chevrolet , GM , Electric First Volt battery pack of the line – Click above for high-res image gallery It was exactly three years ago today that the original Chevrolet Volt concept rolled onto the stage at the 2007 Detroit Auto Show . Last summer, we visited a facility in Brownstown Township, MI that General Motors had chosen to manufacture battery packs for the production Chevrolet Volt . In the intervening five months, GM has been busy installing assembly equipment in the formerly empty building and today GM invited the media back to Brownstown to watch the first “official” pack roll down the assembly line. Starting today, the battery packs are full production-spec units, but GM engineers are still tweaking the management software in an attempt to maximize range and lifespan

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General Motors builds first Volt battery pack on production line [w/video]