The clock is ticking on electric car batteries—and how long they will last
Share to facebookThe chassis of a new Chevrolet Volt electric plus gas eco-friendly car from General Motors. AFP PHOTO / Frederic J. BROWN You have to draw the line somewhere, so I’m going to choose 2012. That’s when Tesla started making the Model S in earnest, and the big battery packs that power it. Sure, there were electric cars before the Model S, but not many, and none I can think of that used packs as big or as sophisticated as the P85 and its stablemates. So 2012 it is.
where a user posted that his Tesla’s battery had shown only a tiny amount of degradation after years of service and 72,000 miles. He was an early buyer of the then largely unknown Model S , and he claims that since he purchased the car that same year, he’s only lost about two percent of capacity, which has resulted in the loss of just a handful of miles of range.
, which means some early adopters are coming up on the end of their warranty period. It will be interesting to see how those Tesla and other EV owners fare as the years and miles pile up.Any “battery” is an energy storage device, of course. It does not generate energy, it just holds energy for use later. Modern batteries have come a long way in a short time.
But rechargeable batteries of any kind still wrestle with common problems: Degradation over time, which affects the ability to hold a charge, long charging times and myriad “best practices” that need to be followed to maximize battery life, even if those practices keep a battery from performing to its full potential. You know what they are: Don’t run them all the way down. Don’t get them too hot.!! Use only the approved charger/cable/thingie, and in general, don’t try to replace them yourself.
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