‘Roadster 3.0’ Applies to Model S Knowhow to Startup Car
Tesla is applying knowhow developed for its Model S sedan to its first product, the Roadster, and the result may well be a battery electric car with a single-charge range of 400 miles.
“The original Roadster battery was the very first lithium ion battery put into production in any vehicle,” states a Tesla blog post. “It was state of the art in 2008, but cell technology has improved substantially since then.
“We have identified a new cell,” says the Tesla team, “that has 31% more energy than the original Roadster cell. Using this new cell we have created a battery pack that delivers roughly 70 kilowatt-hours in the same package as the original battery.”
Early 2015 Demo Planned
New tires and a kit to improve vehicle aerodynamics have been developed for the Tesla Roadster too, and Tesla is improving the Roadster’s wheel bearings and residual brake drag performance.
“Combining all of these improvements we can achieve a predicted 40% to 50% improvement on range between the original Roadster and Roadster 3.0,” states the post, citing “a set of speeds and driving conditions where we can confidently drive the Roadster 3.0 over 400 miles.
“We will be demonstrating this in the real world during a non-stop drive from San Francisco to Los Angeles in the early weeks of 2015…
“Appointments for upgrading Roadsters will be taken this spring once the new battery pack finishes safety validation.”
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Source: Tesla Motors with Fleets & Fuels follow-up