![]() ![]() A long-lasting battery could increase a car’s resale value. Individual car owners, theoretically, could keep their batteries and install them into new car bodies. But it’s possible to design cars so that batteries can be swapped in and out. No car is likely to last 1 million miles. A battery that lasts 1 million miles could handle 4,000 full recharges or more. Manufacturer warranties on car batteries top out at about eight years and 150,000 miles - which is proving conservative, as car batteries in general are outlasting their warranties. Right now, most car batteries are rated to handle about 1,000 full charges total. Today’s batteries face limits on the number of times they can be recharged. Regular recharges every few hundred miles would still be needed to keep a car or truck powered. It means a battery that will last for 1 million miles or more before it can’t hold a charge strong enough to power an electric car anymore. What is a million-mile battery?Ī million-mile battery does not mean you can drive a million miles between recharges. ![]() “t would eliminate one of the big negatives associated with electric vehicles,” said Donald Sadoway, a materials chemist and battery expert at the Massachusetts Institute of Technology: the car owner’s fear that the battery will die and require costly replacement.īut because the battery industry is loaded with start-ups and inventors promoting their wares, often before they’re ready for prime time, Sadoway suggests some skepticism is in order. “We’re not saying this is completely in the bag.”)īut the idea of a million-mile battery offers real promise. “There’s still a lot of work to do,” he said. (Update: At the event, Musk undershot expectations, announcing what amounts to a pilot project he suggested could reach volume production by 2030. Musk is expected to detail a million-mile battery project - along with, he teased on Twitter, other “exciting things.” If you haven’t, Elon Musk will make sure you do on Tuesday, when Tesla goes online for what it’s calling Battery Day. Perhaps you’ve heard about the “million-mile battery” - the latest buzz phrase electric vehicle proponents hope will energize public interest in buying EVs. ![]()
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