Nissan Versa 4 Cylinder Mpg Hatchback on 2040-cars

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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.

Ford GT Mk II at Goodwood, Bentley EXP 100 GT concept EV and driving the Hyundai Veloster N | Autoblog Podcast #588

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Consumer Editor Jeremy Korzeniewski and Associate Editor Joel Stocksdale. To kick things off, they talk about driving the Porsche Cayenne S, Hyundai Veloster N and Nissan Armada. Then they recap the Goodwood Festival of Speed, including the Ford GT Mk II that debuted there. Next up is news: the Bentley EXP 100 GT electric concept car, Ford canceling diesel for the Transit Connect and Elon Musk dismissing talk of a refresh for the Model S and Model X. Finally, they take to Reddit to help pick between a 2016 Audi S3 and a 2017 Alfa Romeo Giulia. Autoblog Podcast #588 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Cars we're driving: 2019 Porsche Cayenne S 2020 Hyundai Veloster N 2019 Nissan Armada Ford GT Mk II debuts at Goodwood, and other impressions from the event Bentley unveils EXP 100 GT electric concept car Ford cancels diesel engine for Transit Connect Tesla Model S and X wonÂ’t get a refresh Spend My Money: Audi or Alfa? Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video:    

Nissan wants French State out of its alliance with Renault

While it's called the Renault-Nissan Alliance, the French side actually throws around a lot of weight in the relationship, and the government there is the largest shareholder. Meanwhile, the Japanese company generates about two-thirds of the sales. As leader of both automakers, Carlos Ghosn is reportedly now working to put more control into the Nissan side, according to insiders speaking to Reuters. The French State is expected to fight hard against losing sway. The government in France prompted Ghosn's distrust after buying up 19.7 percent of Renault's stock, from a previous 15 percent. Officials snubbed the CEO by giving him just a few hours notice, according to Reuters. Now, the boss is looking for ways to mitigate state control, but to make this plan happen Ghosn needs formal approval from the Renault board. If successful, the proposed plan would overhaul the close partnership between the automakers. Whereas the French side currently has the final say in decisions, this move would grant both of them equal power. In addition, Nissan would become the largest owner of Renault, but the French wouldn't have the same control over its Japanese ally. The French government isn't ready to just hand over power to Ghosn, though, because it reportedly wants to protect jobs in the country. The Alliance "must not be destabilized by governance changes or adjustments that could also lead to conflicts of interest," Economy Minister Emmanuel Macron said to Reuters. Clearly, this fight is just beginning. Related Video: