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DC fast charging not as damaging to EV batteries as expected

As convenient as DC fast charging is, there have been lots of warnings that repeated dumping of so many electrons into an electric vehicle's battery pack in such a short time would reduce the battery's life. While everyone agrees that DC fast charging does have some effect on battery life, it may not be as bad as previously expected. Over on SimanaitisSays, Dennis Simanaitis, writes about a recent presentation by Matt Shirk of the Idaho National Laboratory (INL) called DC Fast, Wireless, And Conductive Charging Evaluation Projects (PDF) that describes an ongoing test of four 2012 Nissan Leaf EVs that are being charged in two pairs of two. One pair only recharges from 50-kW DC fast chargers, which the other two sip from 3.3-kW Level 2 chargers exclusively. Otherwise, the cars are operated pretty much the same: climate is automatically set to 72 degrees, are driven on public roads around Phoenix, AZ and have the same set of dedicated drivers is rotated through the four cars. "Degradation depends more on the miles traveled than on the nature of recharging." What's most interesting are the charts on page seven of Shirk's presentation (click the image above to enlarge), which show the energy capacity of each of the four vehicles. When they were new, the four batteries were each tested to measure their energy capacity and given a 0 capacity loss baseline. They were then tested at 10,000, 20,000, 30,000 and 40,000 miles, and at each point, the DC-only EVs had roughly the same amount of battery loss as the Level 2 test subjects. The DC cars did lose a bit more at each test, but only around a 25-percent overall loss after 40k, compared to 23 percent for the Level 2 cars. Simanaitis' takeaway is that, "INL data suggest that the amount of degradation depends more on the miles traveled than on the nature of recharging." The tests are part of the INLs' Advanced Vehicle Testing Activity work and a final report is forthcoming. These initial numbers from IPL do mesh with other research into DC fast charging, though. Mitsubishi said daily fast charging wouldn't really hurt the battery in the i-MiEV and MIT tests of a Fisker Karma battery showed just 10-percent loss over 1,500 rapid charge-discharge cycles.

2015 Nissan GT-R Nismo priced from $149,990* [w/videos]

Remember when they called the Nissan GT-R a supercar-slayer? You can drop the "slayer" part, because the Japanese brute known as Godzilla has long since grown from an ankle-biter nipping at the heels of giants to a giant in its own right. And if that's the case with the "basic" GT-R, it's certainly the case with the new GT-R Nismo.
While the base price for the GT-R has breached the six-figure mark, the Nismo version has just been priced ten bucks shy of $150k. Factor in the $1,595 destination charge and you're looking at a $151,585 sticker price. That may seem like a lot for a Nissan, but bear in mind what you're getting for all that scrap: the GT-R Nismo's 3.8-liter twin-turbo V6 has been optimized to deliver 600 horsepower and 481 pound-feet of torque to all four wheels.
We've yet to see official performance stats, but considering that the base GT-R hits 60 in 2.6 seconds with 55 hp and 18 lb-ft less muscle, the Nismo version ought to teach a lesson or two to exotic supercars costing twice or even ten times as much. Just check it out in the videos and press release below.

Nissan New Micra being considered for Canadian market

A new story from AutoGuide is triggering new speculation that Nissan may be about to bring its New Micra to North America. According to a dealer-based source, Nissan is showing off the overseas hatchback at Canadian dealer meetings along with the redesigned 2014 Rogue. The report indicates that the car is expected to go on sale sometime mid next year. Autoblog has learned that, while the New Micra is indeed under study for the Canadian market, it is not being considered for US sales. Our well-placed source tells us that bringing the New Micra to US dealers "just wouldn't make sense."
Bringing the New Micra to US dealers "just wouldn't make sense."
Reading between the lines a bit, that's because Nissan already has a robust small car lineup spearheaded by the Versa sedan and new Versa Note hatchback, along with the compact Sentra. And while both Versa models are generously sized for the subcompact classes they compete in, their low entry price (the sedan starts under $12k) means that pricing the smaller Micra underneath it would be difficult. Given its historically significantly higher fuel prices (not to mention higher vehicle prices and a penchant for small cars), Canada seems like a much more hospitable market for the Micra.