Tesla Motors teases battery swapping for Model S electric car CSMonitor com

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Interesting » Electric Cars

Tesla Motors teases battery swapping for Model S electric car

Tesla Motors has discussed battery swapping as part of the Model S electric car design at least since 2009, Fisher writes. Last week, Tesla Motors the company was planning to introduce features that allow for the rapid replacement of depleted battery packs.

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On page 38 of a May 10 filing with the Securities Exchange Commission, Tesla Motors [NSDQ:TSLA] discussed factors that may influence the adoption of electric vehicles.

Among the factors discussed was its ability to rapidly swap out the Model S battery pack, and the development of specialized public facilities to perform such swapping, which do not currently exist but which we plan to introduce in the near future . (our emphasis)


We’ve heard this before

Tesla has discussed battery swapping as part of the Model S design at least since 2009. As recently as March, in its previous 10-K filing. it said it was considering implementing some version of the technology during 2013.

The latest information is the statement that specialized public facilities for conducting battery swaps are something that it plan[s] to introduce in the near future. It essentially telegraphs an imminent announcement.

It also eliminates previous discussion of battery swaps occurring at service centers in favor of the far more interesting specialized public facilities.

Beyond the SEC filing. CEO Elon Musk recentlytweeted. There is a way for the Tesla Model S to be recharged throughout the country faster than you could fill a gas tank.

Five-part trilogy

When asked what this tweet was about, he responded. Don’t forget the mystery announcement. Part 5 of the trilogy—referring to earlier tweets promising imminent announcements, including the new Financing Plan and Service Plan recently announced.

We still await word on an expansion of the network of SuperCharger quick-charging stations, as well as the mystery announcement. Both are expected any day now.

Currently, the SuperCharger system offers the fastest charging installed on any electric car. It allows a Model S to add roughly 150 miles in 30 minutes under optimal conditions, and can even complete a full 265-mile Range charge of an 85-kWh Model S in a bit more than an hour—allowing owners to take long road trips.

But even SuperCharging is incapable of charging the large Tesla Model S battery pack faster than you can fill a gas tank.

We are left to believe that the mystery announcement is related to the 10-K’s battery-swap announcement.

Rapid battery swapping

So what is rapid battery swapping? Just what it sounds like: It replaces a depleted battery pack with a full one, rapidly.

It may be best known among electric-car fans through the struggling Better Place service in Israel .

Interesting » Electric Cars

It would entail driving the Model S into a small automated facility, rather like an automated car wash. A robotic mechanism would remove the battery from under the floor and replace it with a fully charged pack.

Presumably after paying for the service through their touchscreen displays, Model S owners could drive away with fully charged batteries, ready to complete the next segment of their trips.

Musk has previously described this process as equivalent to the Better Place battery-swap process. which can swap out a battery pack in less than a minute.

Unlike Better Place, however, Tesla owners would then pick up their original batteries on the return trip.

Vigilance required

There has always been skepticism about whether Tesla would move forward with a battery-swap system, whether for functional or economic reasons.

The company has announced $200 million in capital expenditure for 2013; a major investment in battery-swap infrastructure would clearly require substantial effort and resources.

But the statement in the 10-K and Musk’s tweets appear to leave little room for doubt.

And perhaps the need was foreshadowed by Jake Fisher, head of automotive testing at Consumer Reports .

He said of the Model S: If it could recharge in any gas station in three minutes, this car would score about 110 [out of 100].

Thomas Fisher is a performance-car enthusiast and Tesla Model S fan who lives in Southern California. He works as a business consultant and occasional writer.

The Christian Science Monitor has assembled a diverse group of the best auto bloggers out there. Our guest bloggers are not employed or directed by the Monitor and the views expressed are the bloggers’ own, as is responsibility for the content of their blogs. To contact us about a blogger, click here . To add or view a comment on a guest blog, please go to the blogger’s own site by clicking on the link in the blog description box above.

Interesting » Electric Cars
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Interesting » Electric Cars
Interesting » Electric Cars
Interesting » Electric Cars
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