2003 Nissan 350z Touring Coupe 2-door 3.5l on 2040-cars

Auto blog

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.

Nissan recalls over 220k Altima sedans over hoods that could fly open

Nissan will be recalling 220,000 Altima sedans, according to a new recall bulletin from the National Highway Traffic Safety Administration. Apparently, model year 2013 Altimas built between March 6, 2012 and February 28, 2013 are at risk of their hoods flying open at speed.
According to NHTSA, debris, corrosion and interference between the hood's inner panel and the secondary latch lever could bind the mechanism in the unlatched position. While this in itself won't cause the hood to fly open - there's still a primary latch that needs released from within the cabin - it presents a potentially dangerous situation should the primary latch be accidentally released.
Nissan will begin notifying owners of the affected vehicles, who will need to report to their local dealer for free repairs. Scroll down for the full bulletin from the government safety watchdog.

Nissan axing Pathfinder Hybrid from 2016 lineup

The Nissan lineup gets a little smaller for the 2016 model year, as the Pathfinder Hybrid is dropped from the range. With its debut in late 2013, the electrically assisted SUV is one of the company's more recent introductions. However, it never really caught on with the public. "The Pathfinder Hybrid is not available in the US for the 2016 model year. Our emphasis is on the 3.5-liter V6 Pathfinder that achieves a best-in-class 20-city and 27-highway fuel economy," Nissan North America product communications director Dan Bedore confirmed to Autoblog. "Nissan has no announcement on future hybrid gasoline-electric powertrain applications at this time." Nissan actually ended production of the Pathfinder Hybrid in January, and "the hybrid was never a big part of Pathfinder sales," Bedore said to Automotive News. For the price premium, the electrically assisted version that combined a supercharged 2.5-liter four-cylinder and a 20-horsepower electric motor was only rated three or four miles per gallon better in EPA combined ratings than with the V6. However, while the company doesn't outline individual sales of the two, powertrain variants, the SUV is performing well so far this year. Through June 2015, sales are up 4.9 percent with 41,938 units sold. The future for the Infiniti QX60 Hybrid, which is the Pathfinder's more luxurious sibling, doesn't look very bright either. "For the United States, while the QX60 Hybrid continues to be available at some retailers across the country, our production is currently focused on the QX60 3.5 model," Infiniti spokesperson Kyle Bazemore told Autoblog. However, the vehicle is still in production at the Smyrna, TN, factory for export to places like China and Mexico. According to Bazemore if demand happens to increase in the US, "we have the manufacturing ability to make them available." Overall, QX60 sales are also up 14 percent this year in the US.