The U.S.-based startup electric automaker Rivian is already showing plenty of signs that it's doing things differently than Tesla. While Tesla CEO Elon Musk discusses potential features of the company's new cars on Twitter, Rivian has held back on boasting about some of its most innovative ideas. The latest, according to a wide-ranging new... Rivian CEO confirms auxiliary batteries, truck-to-truck charging
The U.S.-based startup electric automaker Rivian is already showing plenty of signs that it's doing things differently than Tesla. While Tesla CEO Elon Musk discusses potential features of the company's new cars on Twitter, Rivian has held back on boasting about some of its most innovative ideas. The latest, according to a wide-ranging new... 
The promoter of racing's wackiest series wants to include EVs. A new report from the International Energy Agency shows greenhouse gas emissions set new records in 2018. And our latest Twitter poll shows which upcoming electric SUV our readers most want to buy. All this and more on Green Car Reports. Racing is meant to improve the breed. Usually... 
Some electric-car owners go to great lengths to preserve the battery life in their electric cars. Others just plug them in every time they're finished driving and charge them up to full. Maybe, according to new research announced earlier this week, the durability of batteries can be determined after only the first few charge cycles, and may have... 
A Woburn, Massachusetts, company may be attracting big name attention for its solid-state technology that it says can withstand higher temperatures and offer higher capacity. For battery makers, producing a stable solid to withstand the rigors of charging and discharging has proved elusive. Ionic Materials said in February that it had secured $65... 
Over the seven years modern, mass-priced electric cars have been on sale, various bits of wisdom have emerged among their fans, advocates, and owners. One might be how much battery range is "enough" to prevent drivers from worrying constantly about whether they need to charge. Another might be which vehicles have batteries that seem to hold their... 
The Nissan Leaf, at least for the moment, remains the highest-volume electric car produced in history, with more than 300,000 sold. One of the measures that kept its cost down was the use of passive air cooling for its battery pack, rather than the pricier liquid cooling used by other makers to keep battery temperatures within limits. Nissan has... 
![Prof. John Kelly on battery life in Nissan leaf, Chevy Bolt EV [video: Weber State University, Utah]](https://images.hgmsites.net/tmb/prof-john-kelly-on-battery-life-in-nissan-leaf-chevy-bolt-ev-video-weber-state-university-utah_100646577_t.gif)
It's one of the major questions for any electric-car buyer: How long will the battery pack last? And what would it cost to replace it if I do need a new one sometime down the road? Now a new video looks at that question, comparing the different thermal-management technologies in the batteries of the new 2018 Nissan Leaf and the Chevrolet Bolt EV... 
We tend to take batteries for granted. Day after day, we recharge batteries and expect them to work without giving a thought to how they work or to their state of health. But Akira Yoshino is different. He's one of the pioneers of lithium-ion battery technology. DON'T MISS: Lithium-ion battery packs now $209 per kwh, will fall to $100 by 2025... ![2012 Chevrolet Volt crosses 400,000 miles, September 2017 [photo: owner Erick Belmore]](http://images.hgmsites.net/tmb/2012-chevrolet-volt-crosses-400000-miles-september-2017-photo-owner-erick-belmore_100621124_t.gif)
As more battery-electric cars are sold and more drivers become aware of them, the question of battery life recurs among pretty much every potential buyer. How long will the battery last? Will I have to replace it every 18 months as I do in my smartphone? Data on the liquid-cooled battery packs of older Tesla Model S and Chevrolet Volt cars offers... 
The latest reports on Tesla Model S durability and reliability should likely be considered a win for the Silicon Valley automaker. High-mileage cars aren't unusual, but we're only now starting to see the first truly high-mileage examples of electric cars. With less maintenance required compared to cars powered by internal-combustion engines, it's... 
The 2018 Nissan Leaf will likely be revealed within the next three months, but more than 100,000 older Leaf electric cars are still silently in use on U.S. roads. Some of them, especially the lowest-range cars from the two earliest model years (2011 and 2012), have started to see significant battery capacity degradation. That was the case with... 
Tesla has given its used electric-car sales a jolt and sweetened the deals for potential buyers. CEO Elon Musk announced changes to the Tesla Model S sedan's warranty structure and major price cuts on used examples during the annual shareholder meeting held June 6. "Maybe somebody wants to buy a Model S for $35,000, $40,000," he said, "and they... ![Tesla Model S lithium-ion battery pack in rolling chassis [photo: Martin Gillet via Flickr]](http://images.hgmsites.net/tmb/tesla-model-s-lithium-ion-battery-pack-in-rolling-chassis-photo-martin-gillet-via-flickr_100481091_t.gif)
Perhaps the biggest question in buyers' minds over electric cars is how long the batteries will last. Most new-car buyers have mobile phones whose batteries have only lasted a couple of years, perhaps less. Even as electric-car battery packs are warranted against outright failure for eight or 10 years, how much degradation should owners... ![2011 Nissan Leaf electric car after battery-pack replacement [by owner Tim Jacobsen, Concord, CA]](http://images.hgmsites.net/tmb/2011-nissan-leaf-electric-car-after-battery-pack-replacement-by-owner-tim-jacobsen-concord-ca_100599982_t.gif)
In designing, testing, and producing the Nissan Leaf, the first modern electric car sold in volume, Nissan made a design decision that some other companies didn't. It chose not to build an active thermal-conditioning system (otherwise known as cooling) into its battery pack. Instead, it relies on ambient air to shed heat—which got the maker... 
Being a pioneer isn't easy. When you're pioneering new automotive technology, it can be challenging and sometimes costly. Just ask anyone who owned an early turbocharged sport sedan, for instance. That also applies, in some cases, to some of the first modern electric cars, and in particular the Nissan Leaf. DON'T MISS: Nissan Leaf leases can... 
When's the last time you sat down and read large parts of an owner's manual for a car? If it's been a few years—or a few decades—you may be surprised how frustrating they are if you're actually searching for specific information. By and large, their indexes are atrocious (often using only manufacturer terms like "connected multimedia...