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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.

Formula Drift kicks off 11th season on Streets of Long Beach

The 2014 Formula Drift series kicked off last weekend in Long Beach, and saw Chris Forsberg, who you'll recall went mad and drifted around a warehouse in an Infiniti M, take the title behind the wheel of his Hankook Tire Nissan 370Z (shown above).
Forsberg really ran away with the first round of competition, outscoring his closest opponent, second-place finisher Kenneth Moen and his Bridges Racing Nissan 240SX, by 20 points. Third place was 2013 championship winner Michael Essa and his Yokohama BMW M3, 30.5 points behind Forsberg.
In the manufacturers' title, Nissan took an early lead with 122 points, which isn't a huge surprise considering five of the top ten drifters were piloting either a Z or a product of the brand's S platform. Ford, which had two drivers (Justin Pawlak and Vaughn Gittin, Jr.) in the top ten, took home second place, while BMW is currently third in the manufacturers' standings.

Recharge Wrap-up: Lucky fan to drive Porsche 918 Spyder, Avis Denmark has 861 Nissan EVs

A Tesla Model S customer shares his story of ownership over the course of 120,000 miles. Dante Richardson describes new software updates as being akin to anticipating the prize in a box of Cracker Jacks. Over the many miles he's driven the car, he has only learned to enjoy it more. "I don't know if it's the software updates or some of the other changes that have occurred with the car, but I find myself increasingly enamored and happy with the car as time has passed," Richardson says. His Volvo C70, in the meantime, usually sits idle as he opts to drive the Tesla. Read more at Tesla's website. A Facebook fan from Austria has won the opportunity to drive the Porsche 918 Spyder more than 622 miles. As part of a celebration for Porsche accumulating 10 million likes on the social media platform, Ingo Georges Vandenberghe will drive from London to the Porsche Experience Centre at Silverstone, via Wales and the Cotswolds, stopping occasionally to have other fans meet up to see and sign the car. It's a rare opportunity for the lucky driver, as every example of the high-performance Porsche hybrid has been sold. Read more at Hybrid Cars, and learn more about the celebration at Porsche's microsite. Avis Denmark now has the largest fleet of Nissan electric vehicles in Europe. The company has ordered 401 new Nissan e-NV200 vans and 60 Nissan Leafs for its leasing scheme. This is in addition to the 400 Leafs the Avis added to its fleet last year. "We had great success already with the Nissan Leaf in Denmark and we leased all of the units we purchased from Nissan very quickly, which has led to us ordering more," says Kasper Gjedsted, managing director of Avis Denmark. "To follow up that success we have decided to add the e-NV200 vehicle to broaden our offering and appeal to new types of customers." Read more in the press release below. AVIS ORDER CREATES EUROPE'S LARGEST FLEET OF NISSAN ELECTRIC VEHICLES - AVIS Denmark orders 401 Nissan e-NV200 vans and 60 Nissan LEAF electric cars - Combined with last year's order of 400 LEAFs, Avis now has largest EV fleet in Europe Copenhagen, 29th April 2015 - Nissan and AVIS Denmark have signed a deal to create the largest fleet of Nissan electric vehicles anywhere in Europe, with a new order of 401 Nissan e-NV200 vans and a further 60 units of the 100 percent electric Nissan LEAF.