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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.

2014 Nissan Leaf price climbs $180 to $28,980*, Ghosn predicts sales doubling

A year ago, Nissan changed the fortunes of its all-electric Leaf in the US market by lopping a serious $6,400 off of the price. The entry-level 2012 Leaf started at $35,200, and the 2013 Leaf S instantly became a much better deal since it started at $28,800. For 2014, the trend is in the opposite direction, but only just. The 2014 Leaf S will start at $28,980. The other two trim levels will start at $32,000 for the SV and $35,020 for the SL. Oh well, we can't get a $6k drop every year, can we? What do you get for your extra $180? Well, as described in July, the 2014 model has the rear camera as standard and there is an available voice command navigation system and text message reader. We've got the full specification breakdown and pricing press release below. We doubt the small extra cost will do much to dent the Leaf's current sales upswing. December 2013 was the EV's best sales month ever, and a grand total of 22,610 units in 2013. That's more EVs than Nissan sold in 2011 and 2012 put together. Nissan CEO Carlos Ghosn said earlier today that he thinks US Leaf sales will double, but didn't say when. "We are now on a trend of 3,000 cars a month in the US, which is about 36,000 cars" a year, Ghosn told Automotive News. "The next step is moving up to 4,000 a month, which is going to be approximately 50,000." The prices listed above do not include Nissan's $850 destination fee, but all Leaf EVs can qualify for the $7,500 federal income tax credit, as well as state and local incentives in some areas. NISSAN ANNOUNCES U.S. PRICING FOR 2014 LEAF™ NASHVILLE, Tenn. (January 8, 2014) – Nissan today announced U.S. pricing for the 2014 Nissan LEAF™, which is on sale now at Nissan dealers nationwide. The 100 percent electric LEAF continues to offer outstanding value, with prices comparable to similar gasoline-powered vehicles after applicable tax credits. Sales of the zero emission LEAF in the U.S. and around the world set all-time records in 2013. The 2014 Nissan LEAF is available in three trim levels: LEAF S, SV and SL, along with option packages offering advanced systems such as Around View® Monitor and 7-speaker Bose® audio. Enhancements for 2014 include the addition of the RearView Monitor as standard equipment on all models (previously part of the Charge Package) and one new exterior color – Gun Metallic (seven total available colors).

PickupTrucks.com's latest test results in a familiar winner [w/video]

PickupTrucks.com has gone and thrown the latest batch of half-ton pickups into a cage match to see who would come out on top. The site put the 2014 Chevrolet Silverado 1500, GMC Sierra 1500, 2013 Ford F-150, Ram 1500, Toyota Tundra and Nissan Titan through a battery of tests. Those included 0-60 miles per hour acceleration, 60-0 mph deceleration, fuel economy, a hill climb, and payload and towing. They even threw the rigs on an autocross course to evaluate overall handling. Each truck was given points based on how it scored in each evaluation.
Who came out on top? Somewhat surprisingly, the 2013 Ford F-150 walked away with the gold, though fewer than 50 points separated first and fourth place. Head over to PickupTrucks.com to read the full evaluation and the final results. You may be shocked to see exactly where some of the segment's newest additions placed. You can also watch a video on the test below.