Below the fold are two more videos from yesterday's Green the Capitol Office Expo. The first video is Electro Energy telling me about their battery which has a structure that takes up less space and weighs less than your average battery. Electro Energy showed a Prius hybrid with extra batteries added where the spare tire would usually go. The second video is a Prius converted by Hymotion for the Department of Energy. Hymotion, which was bought by A123Systems, adds lithium-ion batteries to the Prius extending the electric-powered range.

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