Version: 2008

Photos: Hybrids that give back to the grid

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April 9, 2007 5:07 PM PDT

A fair amount of sophisticated equipment is needed to convert the charge from the lithium-ion battery into the system used by the Prius. Aftermarket installations can cost as much as $10,000, according to CalCars.org.

Photo by Tom Krazit/CNET News.com

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