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		</div><p dir="ltr">Most electric car batteries lose capacity slowly and outlast the warranty. Geotab&#8217;s January 2026 study of more than 22,700 electric vehicles found an average loss of 2.3% of capacity per year, which leaves batteries at about 81.6% of their original capacity after eight years. Recurrent, which tracks more than 30,000 EVs, reports that only 0.3% of 2022 and newer models have needed a battery replacement. A full replacement is still expensive when it happens, from roughly $5,500 for an older Nissan Leaf to more than $34,000 for a Ford Mustang Mach-E.</p>
<p dir="ltr">This article covers what the data says about lifespan, what makes batteries age faster, how warranties work, what replacements cost, and what to check before buying a used EV.</p>
<h2 dir="ltr">The Short Answer</h2>
<p dir="ltr">The 2.3% annual figure is an average, not a promise. Geotab&#8217;s update separates low-use vehicles, which keep about 88% of capacity after eight years, from high-use vehicles, which keep about 81.6%. Both groups remain usable, which matters because most owners drive less than fleet vehicles.</p>
<p dir="ltr">A simple extrapolation shows what the rate implies. If a battery lost a steady 2.3% every year, it would reach 70% capacity, the usual warranty threshold, after about 13 years. Real batteries do not decline in a straight line. Electric Autonomy notes that newer models tend to lose more in the early years before stabilizing, so the straight-line number is only a rough guide.</p>
<h2 dir="ltr">What Geotab&#8217;s 2026 Study Found</h2>
<h3 dir="ltr"><strong>Average Degradation Rose to 2.3%</strong></h3>
<p dir="ltr">Geotab analyzed telematics data from more than 22,700 vehicles across 21 makes and models in Canada, the United States, and Europe, and published the results in January 2026. The average annual degradation is 2.3%, up from 1.8% in its earlier study.</p>
<p dir="ltr">The increase does not mean batteries got worse. Electric Autonomy reports that the 2026 sample includes newer vehicle models, which show steeper early decline. Eight of the 11 models from the 2023 data have stabilized at an average of 1.4% per year. Anyone quoting the old 1.8% figure is citing an earlier, smaller dataset.</p>
<h3 dir="ltr"><strong>Fast Charging Has the Largest Effect</strong></h3>
<p dir="ltr">Geotab&#8217;s press release says vehicles that use DC fast charging above 100 kilowatts degrade as much as 3.0% per year, roughly double the 1.5% seen with AC or lower-power charging. FreightWaves quotes Geotab saying charging power and frequency are the strongest influences on degradation, and that even frequent high-power charging averages only 3% per year.</p>
<p dir="ltr">Electric Autonomy adds that vehicles that used Level 3 DC charging for more than 12% of their charging sessions showed elevated degradation. Charlotte Argue, Geotab&#8217;s senior manager for sustainable mobility, said using the lowest charging power that still meets operational needs can make a measurable difference to battery health.</p>
<h3 dir="ltr"><strong>Heat Adds a Modest Penalty</strong></h3>
<p dir="ltr">Vehicles in hot climates degraded about 0.4% faster per year than those in mild conditions, according to the same press release. Electric Autonomy puts the threshold at spending more than 35% of operating time in 25 degrees Celsius (77 degrees Fahrenheit) conditions. Cold climates were not evaluated.</p>
<h3 dir="ltr"><strong>Thermal Management Matters by Model</strong></h3>
<p dir="ltr">An earlier Geotab analysis of about 10,000 vehicles found a large gap by design. A 2015 Tesla Model S with liquid cooling showed 2.3% annual degradation, while a 2015 Nissan Leaf with passive air cooling showed 4.2%. That comparison reflects older designs, but it shows why the average hides large differences between models.</p>
<h2 dir="ltr">How Often Do EV Batteries Actually Fail?</h2>
<p dir="ltr">Degradation and failure are different things. Degradation is gradual capacity loss. Failure means a pack that needs replacement. Recurrent&#8217;s November 2025 analysis of more than 30,000 EVs in its community found replacement rates fall sharply with newer models.</p>
<p dir="ltr">Vehicles from 2016 and earlier show about an 8.5% replacement rate. Second-generation models such as the early Chevrolet Bolt and Tesla Model 3 show about 2%. Models from 2022 onward show 0.3%. Across all years and models, Recurrent reports under 4%, excluding major recalls.</p>
<p dir="ltr">Recurrent lists three main causes of replacement. They are manufacturing defects or structural problems, such as the Chevrolet Bolt and Hyundai Kona recalls, normal aging over 10 to 20 years, and physical damage from accidents or road debris. Recurrent&#8217;s conclusion is that batteries are holding up better than expected and should outlast the cars themselves.</p>
<p dir="ltr">One caution applies. Recurrent&#8217;s data comes from owners who joined its community, so it is not a random sample of all EVs. It is still one of the largest public datasets on replacements.</p>
<h2 dir="ltr">EV Battery Warranty Terms</h2>
<p dir="ltr">A July 2026 buyer guide in The Weekly Driver summarizes the common terms. The federal standard is 8 years or 100,000 miles, with replacement triggered when capacity falls below 70%. Some makers go further. The guide lists Hyundai and Kia at 10 years and 100,000 miles, Rivian at 8 years and 175,000 miles, and Tesla Model S and X at 8 years and 150,000 miles with a guaranteed 70% retention. It also reports a 10-year, 150,000-mile durability requirement for 2026 model-year vehicles in California.</p>
<p dir="ltr">These terms differ by model, region, and the specific warranty booklet. Check the exact document for the car you are considering, including whether the warranty transfers to a second owner and how the 70% test is performed.</p>
<h2 dir="ltr">What Does an EV Battery Replacement Cost?</h2>
<p dir="ltr">The Weekly Driver lists the following examples for replacement of a full pack.</p>
<h3 dir="ltr"><strong>Tesla Model 3</strong></h3>
<p dir="ltr">A pack costs $13,000 to $16,000, with a refurbished unit around $7,000.</p>
<h3 dir="ltr"><strong>Chevrolet Bolt</strong></h3>
<p dir="ltr">The dealer price is $16,250, while used packs run $5,000 to $9,000.</p>
<h3 dir="ltr"><strong>Nissan Leaf (24 kWh)</strong></h3>
<p dir="ltr">The cost is about $5,500.</p>
<h3 dir="ltr"><strong>Ford Mustang Mach-E</strong></h3>
<p dir="ltr">The cost is $34,000 or more.</p>
<p dir="ltr">The guide also reports that average pack prices fell to about $108 per kilowatt-hour in 2025. Falling cell costs help, but repair shop pricing, pack size, and availability of refurbished units still drive the final bill. Many failures involve only a few modules inside the pack, so a repair can cost less than a full replacement. Ask a shop whether module-level repair is an option before accepting a full-pack quote.</p>
<h2 dir="ltr">How to Buy a Used EV Without Battery Surprises</h2>
<p dir="ltr">The Weekly Driver&#8217;s advice is to request a battery health report, not just the mileage. Mileage is an unreliable indicator because charging history, climate, and design matter more. A report can come from a service like Recurrent or from an OBD-II scan that measures remaining capacity.</p>
<p dir="ltr">Compare the reported capacity with the warranty threshold. A used EV with 88% remaining health and several years of warranty left is a different purchase from one at 75% with the warranty expired. Also check whether the car was a fleet vehicle that used DC fast charging heavily, since Geotab&#8217;s data links that to faster loss.</p>
<h2 dir="ltr">How to Slow Battery Degradation</h2>
<p dir="ltr">Geotab&#8217;s findings point to three practical habits.</p>
<h3 dir="ltr"><strong>Use Slower Charging When You Can</strong></h3>
<p dir="ltr">Home charging at lower power wears the battery less than frequent DC fast charging, according to the press release&#8217;s 1.5% versus 3.0% comparison. Fast charging remains fine for road trips. The data suggests avoiding it as the daily routine when slower charging is available.</p>
<h3 dir="ltr"><strong>Limit Heat</strong></h3>
<p dir="ltr">Hot-climate vehicles lost 0.4% more per year. Parking in shade or a garage in hot regions is a low-cost way to reduce that effect, though the study measured climate and not parking habits.</p>
<h3 dir="ltr"><strong>Pick a Model With Active Cooling</strong></h3>
<p dir="ltr">The older Geotab comparison showed that liquid cooling made a large difference in 2015 designs. Most newer EVs use liquid thermal management, but the cooling approach is worth checking when you compare models.</p>
<h2 dir="ltr">Reading the Numbers Without Over-Reading Them</h2>
<p dir="ltr">Battery statistics are easy to misuse, so a few cautions help. The Geotab figures come from telematics devices installed mostly in commercial and fleet vehicles, so the sample leans toward cars that are driven hard. A private owner who commutes and charges at home sits closer to the low-use group, which Geotab found keeps about 88% of capacity after eight years.</p>
<p dir="ltr">Capacity loss is also not the same as range loss in daily driving. A battery at 82% of original capacity still delivers most of its original range, and many owners never notice the change until they take a long trip or drive in cold weather. If your typical day uses a small share of the battery, the lost capacity may never matter in practice.</p>
<p dir="ltr">The averages also blend very different cars. The earlier Geotab comparison of a liquid-cooled Tesla and an air-cooled Nissan Leaf shows a gap of nearly two to one between models. When you shop, a model-specific number is more useful than a market average, and the best source for it is a battery health report on the exact car.</p>
<h2 dir="ltr">A Quick Checklist for Owners</h2>
<h3 dir="ltr"><strong>Know Your Warranty Dates</strong></h3>
<p dir="ltr">Write down the warranty end date and mileage limit when you buy. If capacity drops sharply near the end of coverage, you want time to document it and ask the dealer for a test.</p>
<h3 dir="ltr"><strong>Keep Charging Records</strong></h3>
<p dir="ltr">Note how often you use DC fast charging. If a problem appears, a history of mostly slow charging supports a claim that the battery was treated normally.</p>
<h3 dir="ltr"><strong>Watch for Warning Signs</strong></h3>
<p dir="ltr">A sudden drop in range, a dashboard warning, or a charging session that stops early all deserve a service visit. Recurrent&#8217;s list of causes includes defects and physical damage, so a problem that appears early is worth reporting while the warranty is active.</p>
<h3 dir="ltr"><strong>Ask About Software Updates</strong></h3>
<p dir="ltr">Recurrent notes that several automakers kept full original range over five years through software and efficiency updates. Ask your dealer whether an update is available for your model.</p>
<h2 dir="ltr">What This Means for Resale Value</h2>
<p dir="ltr">Battery health shapes what a used EV is worth, since replacement is the largest repair risk. A car with a documented health report and remaining warranty is easier to sell and easier to trust. If you plan to sell, request a report before listing the car and keep the service records together. Buyers who follow The Weekly Driver&#8217;s advice will ask for exactly that.</p>
<h2 dir="ltr">Frequently Asked Questions</h2>
<h3 dir="ltr">How long do EV batteries last?</h3>
<p dir="ltr">Geotab&#8217;s January 2026 data suggests a typical battery keeps about 81.6% of its capacity after eight years. Straight-line extrapolation would put 70% capacity at around 13 years, but real curves flatten for many models. Recurrent expects modern packs to outlast the cars.</p>
<h3 dir="ltr">How much does it cost to replace an EV battery?</h3>
<p dir="ltr">It ranges widely. The Weekly Driver lists about $5,500 for an older 24 kWh Nissan Leaf, $13,000 to $16,000 for a Tesla Model 3, $16,250 for a Chevrolet Bolt at a dealer, and more than $34,000 for a Ford Mustang Mach-E.</p>
<h3 dir="ltr">Does fast charging ruin an EV battery?</h3>
<p dir="ltr">Not by itself. Geotab found vehicles that used DC fast charging above 100 kilowatts degraded up to 3.0% per year, against 1.5% for lower-power charging. That is faster aging but still leaves batteries usable for many years.</p>
<h3 dir="ltr">Are EV battery warranties long enough?</h3>
<p dir="ltr">The federal standard is 8 years or 100,000 miles with a 70% capacity floor. Several manufacturers offer longer coverage. Since Recurrent reports a 0.3% replacement rate for 2022 and newer models, most owners will not use the warranty, but it protects against defects.</p>
<h3 dir="ltr">Do EV batteries lose range as they age?</h3>
<p dir="ltr">Yes, gradually. Geotab&#8217;s 81.6% figure after eight years means about 18% less capacity. Recurrent notes that several automakers maintained their full original range over five years through software and efficiency updates, even as the batteries aged physically.</p>
<h2 dir="ltr"><strong>References and Sources</strong></h2>
<p dir="ltr">Electric Autonomy, &#8220;Latest Geotab study finds EV batteries lose just 2.3% per year&#8221;: <a href="https://electricautonomy.ca/ev-supply-chain/batteries/2026-01-13/latest-geotab-study-finds-ev-batteries-lose-just-2-3-life-per-year/">https://electricautonomy.ca/ev-supply-chain/batteries/2026-01-13/latest-geotab-study-finds-ev-batteries-lose-just-2-3-life-per-year/</a></p>
<p dir="ltr">Geotab via GlobeNewswire, &#8220;New Geotab data shows EV battery health remains strong as fast charging use increases&#8221;: <a href="https://www.globenewswire.com/news-release/2026/01/13/3217721/0/en/new-geotab-data-shows-ev-battery-health-remains-strong-as-fast-charging-use-increases.html">https://www.globenewswire.com/news-release/2026/01/13/3217721/0/en/new-geotab-data-shows-ev-battery-health-remains-strong-as-fast-charging-use-increases.html</a></p>
<p dir="ltr">FreightWaves, &#8220;Geotab study finds EV batteries remain robust despite rise in fast charging&#8221;: <a href="https://www.freightwaves.com/news/ev-battery-degradation-geotab-study-2026">https://www.freightwaves.com/news/ev-battery-degradation-geotab-study-2026</a></p>
<p dir="ltr">Geotab, &#8220;EV Battery Health Insights: Data From 10,000 Cars&#8221;: <a href="https://www.geotab.com/blog/ev-battery-study/">https://www.geotab.com/blog/ev-battery-study/</a></p>
<p dir="ltr">Recurrent, &#8220;New Data: How Long Do Electric Car Batteries Last?&#8221;: <a href="https://www.recurrentauto.com/research/how-long-do-ev-batteries-last">https://www.recurrentauto.com/research/how-long-do-ev-batteries-last</a></p>
<p dir="ltr">The Weekly Driver, &#8220;EV Batteries Are Outlasting the Cars. The Data Tells You Which Used Ones to Trust&#8221;: <a href="https://theweeklydriver.com/2026/07/how-long-do-ev-batteries-last-used-buyer-guide/">https://theweeklydriver.com/2026/07/how-long-do-ev-batteries-last-used-buyer-guide/</a></p>

How Long Do EV Batteries Last? Real Degradation Data and Replacement Costs in 2026
How Long Do EV Batteries Last? Real Degradation Data and Replacement Costs in 2026