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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.

Recharge Wrap-up: EV taxis in Amsterdam, Montreal's electric carsharing goals

Amsterdam has become the electric taxi capital of the world. Taxi Electric, TCA, and Connexxion each operate electric cabs around the city, including 170 Nissan Leaf and e-NV200 taxis. Taxi Electric started with three Nissan Leafs in 2011, and the idea has caught on. Businesses are saving money on fuel and maintenance, garnering attention and new clients for themselves and doing their part to help reduce emissions and improve local air quality. The city of Amsterdam hopes to be emissions-free by 2025, and is building more and more charging stations to this end. This helps make the city the perfect home for the electric cabs. See the video above and read more from Nissan. Montreal is calling for a large electric carsharing program. Mayor Denis Coderre says that he'd like the city to be seen as a leader in electric transportation. His vision includes a carsharing program of 250 electric vehicles by next spring, growing to 1,000 EVs by 2020. This would help Montreal reach its goal of cutting the city's greenhouse gas emissions by a third over the next five years. The city also wants to build new charging infrastructure to make the carsharing plan, as well as individual EV ownership, easier to achieve. Currently, carsharing group Communauto operates a fleet of 40 EVs in Montreal. Read more at Treehugger. Enterprise Carshare has joined the nonprofit CarSharing Association. The car rental company's carsharing business made the announcement at the 2015 International Car Rental Show, during a session called "The Convergence of Car Sharing and Car Rental." "Enterprise CarShare is a well-established player in the industry and we're glad to have their help in expanding support for sustainable urban mobility in communities around the world," says CarSharing Association Executive Director Alan Woodland. Read more from Enterprise in the press release below. Enterprise CarShare Joining CarSharing Association LAS VEGAS (April 15, 2015) – Enterprise CarShare formally announced yesterday – at the 2015 International Car Rental Show – that it has joined the CarSharing Association, a not-for-profit organization committed to advancing cooperation between urban mobility providers, cities and public transit. The announcement was made during a Car Rental Show session titled, "The Convergence of Car Sharing and Car Rental," which highlighted the important role that the car rental industry plays in the evolution of urban mobility.

Nissan to build no more than 17 examples of Juke-R 2.0

Nissan is planning to put the new Juke-R 2.0 into low-volume production, a report says. It was revealed at the Goodwood Festival of Speed about a month ago, and it packs greasy bits from a Nissan GT-R into the modified chassis and bodywork of a Juke crossover. Version 2.0 packs 600 horsepower, a leap from the 545 hp produced by the first rendition. Production plans were not clear at Goodwood, but the Italian website OmniAuto.it says that Nismo will produce as many as 17 examples of the Juke-R 2.0. We say "as many as" because production will likely depend on demand, and as small as that number may be, the price of entry is sure to be steep. The previous version was limited to 21 examples, each priced at over $650,000. At the time that we drove it more than two years ago, Nissan had only made (and found homes for) four examples. Of course the Juke-R isn't the only performance crossover out there. Following Porsche's lead, Lamborghini, Maserati, Lotus, and Aston Martin (to name just a few) are all gearing up to launch their own, while the likes of Mercedes-AMG, BMW M, Audi Quattro, and Jaguar Land Rover's Special Vehicle Operations division continue to churn out faster and more powerful sport utes. The Juke-R may be the most bonkers to date, but it'll soon find itself in good (and very fast) company. Related Video: Featured Gallery Nissan Juke-R 2.0 View 22 Photos News Source: OmniAuto.itImage Credit: Nissan Nissan Crossover Performance Supercars nissan juke-r