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New Study Predicts How Long Your EV’s Battery Will Last

Gallery-New Study Predicts How Long Your EV’s Battery Will Last

Tesla's Model S is one of the EVs that Recurrent reports on in its study of battery replacement rates.
Recurrent’s community of 15,000 EV drivers have provided data on how various models’ ranges change with time. Here’s what it shows.

Recurrent is an organization with a mission of “providing more transparency and confidence in pre-owned electric car transactions,” in order to “accelerate the overall adoption of electric vehicles.” In Late March, they released a report titled “How Long Do Electric Car Batteries Last?” With their permission, we’re summarizing some of their conclusions and sharing their data charts. (The entire report is worth your time; you can read it here.)

Report author Liz Najman points out a salient fact about all lithium-ion batteries: as soon as they’re born, they start to die.

“Lithium ion batteries start to degrade as soon as they are made and that affects available range as cars age. … Even if you never use lithium ion batteries, they slowly lose power and efficiency over time.”

Her report has three topline conclusions:

  • Battery replacements are rare. “In our community of 15,000 cars, only 1.5% have been replaced (outside of big recalls like Chevy Bolt).”
  • Degradation is not linear: “There's some drop in the beginning then it levels out for a long period.”
  • Most replacements occur under warranty: “For example, a new Rivian has battery coverage for 175,000 miles or 10 years. The federal minimum warranty is 8 years or 100,000 miles.”

With Recurrent's permission, let’s take a look at the data.

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