Tesla Motors (NASDAQ:TSLA) has had great success with its battery-electric Model S luxury sedan. But the big global automakers -- the folks who are supposed to know all about making cars -- haven't managed to do a whole lot with the technology yet. What's the deal?

In this video, Fool.com contributor John Rosevear looks at the latest sales numbers for the "other" battery-electric cars -- and at what the big guys have done to try to get their slow sales to start taking off.

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