MORE POWER: Tesla's new battery pack increases the distance the Tesla car can travel on a single charge by nearly two-thirds.
US electric car maker Tesla Motors Inc will relaunch its Roadster model with a new battery pack that will increase the distance the car can travel on a single charge by nearly two-thirds to more than 644km.
Tesla will demonstrate the enhanced range for the new Roadster in a drive from San Francisco to Los Angeles in the early weeks of 2015, the company said in a blog post.
The current Roadsters can travel up to about 395km on a single charge.
Tesla had discontinued the production of Roadster, its first car, three years ago to focus on its Model S sedan.
The company launched the Roadster in 2008 and sold about 2,500 units until January 2012.
Tesla's announcement hints at plans to use more advanced battery packs in Model S sedans and the upcoming sports utility vehicle Model X and the smaller Model 3 car, Stifel Nicolaus and Co analyst James Albertine wrote in a note.
Tesla is expected to launch the Model X in 2015 and the Model 3 in 2017. — Reuters
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