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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.

Robert Llewellyn fast-charges long-distance Leaf EV drive in UK

A British actor likely best known in his country for his role in the 1980s and 90s comedy series Red Dwarf has just made a pretty good case for driving green automobiles. Last week, Robert Llewellyn has completed an 862-mile round trip between London and Edinburgh in a Nissan Leaf and says he was able to save time by finding enough fast-charging stations the entire way, UK website Excite/Motoring says. Llewellyn, along with co-driver David Peilow, knocked out the London-to-Edinburgh leg in a single day, in part because of the British network of about 150 fast-charging stations. Llewellyn used his Twitter feed to update the general public of the two drivers' progress, noting that the first leg took about 13 hours. The round trip was completed January 26. Nissan can use all the positive publicity in can get, as UK sales of the all-electric vehicle failed to keep pace with the surging rate of demand in the US, where 2013 Leaf sales more than doubled from a year earlier to 22,610 units. In fact, in the UK, Nissan started offering incentives last month, things like free quick charging at Nissan dealerships, the ability to borrow gas-powered Nissans for free and free towing.

Nissan reviving Pulsar name for Euro market

The Nissan Pulsar doesn't have what we'd consider a rich history in the US, other than on some models decades ago. However, the nameplate has been part of the Nissan lineup globally since 1978 and has proven popular in Asia and Australia. Now, the brand is teasing a five-door hatch to revive the name and hit European showrooms this fall.
The new Pulsar will be built at the company's recently renovated factory in Barcelona, Spain. It's not clear from the teaser whether this is the same model that is already sold in other parts of the world or a brand new vehicle. Although, Nissan says in the announcement that the car "has been designed to meet the specific demands of European car buyers."
With competitors like the Volkswagen Golf and Ford Focus, the European five-door hatch market is seriously competitive. It will be interesting to see if Nissan will have something special to bring to the table. Scroll down to read Nissan's full teaser about its latest hatchback in Europe.