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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.

Hot Wheels' 2022 Green Speed cars bring EVs to small scale

With more and more EVs hitting the market, it was only a matter of time before the new breed of cars would find representation in diecast form. For 2022, Hot Wheels is coming out with a new Green Speed series that puts the spotlight on a diverse lineup of electric cars. The five-car series features a fun mix of EVs from different manufacturers and in a wide range of styles. Some are completely bone stock. For a traditional luxury sedan, there's a Lucid Air in silver, complete with glass (or in this case, clear plastic) canopy. For fans of Teutonic 4-door "coupes" there's the Audi RS e-Tron GT in Daytona Gray. Ticking the truck box is a Hummer EV in a yellow that can only be described as a throwback to the H3. But because this is Hot Wheels, there are "hot-rodded" variants in the lineup as well. Rather than just a regular Nissan Leaf, they've elected to cast the carbon fiber-bodied NISMO RC 2.0 race car. Likewise with Ford, instead of the standard Mustang Mach-E, they've gone with the Mustang Mach-E 1400 drift car. This isn't the first time Hot Wheels has put out a Green Speed series. The line debuted in 2016 but reflected the limited EV choices in the real car market at the time. The only non-fantasy cars in the series were a first-gen Tesla Roadster, a Tesla Model S, and Chevy Volt. Hot Wheels revisited the line again in 2019, this time adding a Tesla Model 3 and a Porsche Panamera Turbo S E-Hybrid Sport Turismo. Hot Wheels also makes other mini EVs that don't fall into this specific line of models. If you want to collect 'em all, there's the second-generation Tesla Roadster concept, Cybertruck, Jaguar I-Pace, Pininfarina Battista, Porsche Taycan, and a Volkswagen ID R. Similarly, Matchbox has released a version of the Tesla Roadster with sustainable packaging to boot. If you must have an old school gasoline burner, Hot Wheels has plenty of options for you too, like, say, this snazzy FJ60 Toyota Land Cruiser. The 2022 Hot Wheels Green Speed series should be on shelves at your local retailers now. Related Video:

We drive the cars of Furious 7... in Forza Horizon 2 [w/video]

On March 27, Turn 10 Studios, the folks behind the Forza Motorsport series, and Universal Pictures, the studio responsible for the Fast and Furious franchise, gave us a match made in heaven, announcing a "standalone expansion" featuring the two franchises. Called Forza Horizon 2 Presents Fast and Furious, it features the cars from the latest film installment, unique missions and the voice-acting of Chris "Ludacris" Bridges, who plays tech guru Tej Parker on camera. A Fast and Furious video game? Seems like a no brainer. It gets better. Rather than limiting the Fast and Furious Edition cars to the expansion game, Turn 10 made them available through one of their (some may say notorious) downloadable content packages. Eight of the expansion's 11 cars were made available for just $4.99 (the only cars that weren't included were the Fast and Furious Edition Nissan GT-R, while the Bugatti Veyron Super Sport and McLaren P1 are already available in-game). What's cool ais that the cars featured in both games are visually identical to the vehicles driven by the stars of Furious 7. Each in-game car has an on-screen parallel that plays a role in advancing the film's story. Considering that we're unlikely to score seat time in Dominic Toretto's real Dodge Charger, then, we figured we'd take to the game and test the car in the digital realm. We've got nine little cluster reviews, covering the cars both in the game and how they appear in the movies. And don't worry, there are no major spoilers here. Click on for the cars of Forza Horizon 2 Presents Fast and Furious. 1970 Dodge Charger R/T Fast and Furious Edition Supercharged 7.2L V8 / 900 HP / 663 LB-FT The one vehicle that is mandatory in a Fast and Furious video game, Dom's hot-rodded 1970 Dodge Charger, is as much a character in the films as its driver. Furious 7 marks the fourth appearance of this Mopar beast in the series. Not surprisingly it's a handful to drive, wildly quick and with a four-speed transmission packed full of very tall gears. But beyond that, it's arguably the coolest of the FF Edition cars. This black beauty is exactly as it appears in the latest installment of the film, with the video game version featuring intricate little details, like the moving parts on the BDS supercharger. It's an iconic car, and it's treated as such in the game.