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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.

Takata air bag recall list

The National Highway Traffic Safety Administration confirmed yesterday that 33.8 million vehicles with Takata airbags are going to be recalled. It's the largest recall in automotive history. The already record-breaking rate of automotive recalls this year shows no signs of slowing down, especially since millions of cars with defective airbags made by global supplier Takata are under ongoing scrutiny. The federal government is warning owners that inflator mechanisms in the air bags can rupture, causing metal fragments to fly out when the bags are deployed. The faulty air bags have already been blamed for multiple deaths. How do you know if your vehicle is safe? The National Highway Traffic Safety Administration released an updated list of vehicles under recall. Sometimes however, the government's website will crash and the list may not be complete. Check your VIN at the NHTSA website to make sure. The list of cars affected by the recall has not been released, but seem to span multiple models over the years for many of the automakers.

Nissan exec talks about smaller Leaf, and maybe a CUV EV as well

The Renault Zoe is a popular electric vehicle in Europe, and it gives buyers on the continent a zero-emissions option that's smaller than the Nissan Leaf. Here in the US, Nissan only offers its one all-electric passenger vehicle, but the company might be taking a page from its corporate partner to offer a smaller Leaf in the near future. According to Gareth Dunsmore, Nissan EV European head, Nissan is thinking about both a smaller EV based on the Zoe and larger, all-electric SUV/CUV. "We've invested $5.4 billion in electric cars such as the Leaf, so we need to ensure we're satisfying as many types of customer as possible," he said. "In Europe, that could mean looking towards B-segment hatches and SUVs or crossovers," according to Auto Express. "If we look towards crossovers or the B-segment for the next car, those could make perfect sense." As for what we actually know about the next-gen Leaf, details are scarce. We did get confirmation that a 200-mile range update is in the works, but information on timing and other details are still something we're waiting for. Let's throw the idea of a smaller Leaf into the rumormill and see when Nissan starts talking. The gallery above shows off the Nissan IDS concept, which was shown at the Tokyo Motor Show last year. Related Video: Featured Gallery Nissan IDS Concept: Tokyo 2015 News Source: Auto ExpressImage Credit: Copyright 2016 Sebastian Blanco / AOL Green Nissan Renault Crossover SUV Electric renault zoe nissan ids