1991 Nissan 300zx Twin Turbo - 1 Owner 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.

Nissan Z Proto, next-gen Hyundai Tucson and a hi-po mystery Bronco | Autoblog Podcast #645

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Green, John Beltz Snyder and News Editor Joel Stocksdale. In the news this week, Ford has teased some sort of high-performance Bronco, Nissan unveiled the Z Proto, Hyundai revealed the next-gen Tucson and GMC teased the Hummer EV's "Crab Mode." Our editors break that all down for you, and share some insights and opinions before they turn to the cars in their own driveways. This week, they've been spending time with the 2020 Mercedes-AMG G 63, as well as the 2020 BMW Alpina B7. Autoblog Podcast #645 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 Ford's beefed-up Bronco prototype stars in new teaser photo Nissan Z Proto previews the retro, rear-drive, turbo, manual future of the Z All the Nissan Z cars that got us to the Z Proto 2022 Hyundai Tucson debuts with striking styling inside and out GMC Hummer teases crab mode, reveal set for Oct. 20 Cars we're driving: 2020 Mercedes-AMG G 63 2020 BMW Alpina B7 Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video:

Ex-Nissan chairman Carlos Ghosn indicted, may remain in jail for months

TOKYO — Nissan's ex-chairman Carlos Ghosn was charged Friday with breach of trust, according to the Tokyo District Court, making the star executive's release unlikely for months. Ghosn, arrested Nov. 19, was earlier charged with falsifying financial reports in underreporting his income by about 5 billion yen ($44 million) over five years through 2015. Ghosn; Greg Kelly, another Nissan executive; and Nissan as a legal entity also were charged Friday with additional underreporting of income, from 2015 through mid-2018. Ghosn's lawyer Motonari Ohtsuru said he would request that Ghosn be granted release on bail. His detention period for the breach of trust allegations was due to expire Friday. Kelly and Nissan were not charged with breach of trust. Those allegations center on Ghosn's handling of investment losses and payments made to a Saudi businessman. Ghosn, 64, says he's innocent. Suspects in Japan are routinely held for months until trials start, and Tokyo prosecutors maintain that Ghosn, a Brazilian-born Frenchman of Lebanese ancestry, is a flight risk. Earlier this week Ghosn told a Tokyo court he was innocent, in his first public appearance since his arrest, and appealed for his detention to end. But the court rejected that request. "I have a genuine love and appreciation for Nissan," Ghosn told the court. "In all of my efforts on behalf of the company, I have acted honorably, legally and with the knowledge and approval of the appropriate executives inside the company." He said the compensation was never decided on, the investment deal never resulted in any losses to Nissan, and the payments to the Saudi businessman were for legitimate services related to dealers and investments in the Gulf. Ghosn, who appeared much thinner than before his arrest, came down with a fever the day after his court appearance, but has since recovered, Ohtsuru, the lawyer, said. His wife Carole Ghosn issued a statement overnight out of Paris, expressing concern over his sickness. "I am pleading with the Japanese authorities to provide us with any information at all about my husband's health. We are fearful and very worried his recovery will be complicated while he continues to endure such harsh conditions and unfair treatment," she said. Apart from prosecutors, only embassy officials and Ghosn's lawyers are allowed to visit him. Such visits were canceled Thursday but resumed Friday.