How long do EV batteries last?

How long do EV batteries last in years and miles?

An EV battery loses about 2.3% of its capacity per year on average, according to Geotab's January 2026 analysis of more than 22,700 electric vehicles across 21 makes and models. That is up from 1.8% in Geotab's 2024 findings. At that rate a pack keeps most of its range well past the end of its warranty.

Battery replacements are rare and getting rarer. Recurrent, which collects data from more than 30,000 electric cars, reports that under 4% of EVs have had a battery replaced outside big recalls, 10-year-old cars included. The rate falls with each generation: about 8.5% for EVs from 2016 or earlier, about 2% for the second generation (such as the early Chevy Bolt EV and the first Tesla Model 3), and about 0.3% for 2022 and newer models.

High-mileage EVs tell the same story. Recurrent's Liz Najman told NPR in March 2026 that more than 90% of EVs 10 years or older are still on their original battery, and that cars past 150,000 miles without a replacement keep at least 83% of their original range.

Nobody can yet give an exact end of life for an EV battery. The oldest electric cars on the road have not reached the steep final drop of the aging curve, as NPR notes, so the honest answer is a floor, not a ceiling: most packs last well beyond 8 years and 100,000 miles, and the figure of 15 to 20 years often quoted online is an estimate, not a measurement.

Source: Recurrent, data from more than 30,000 electric cars, November 2025.

How long does an electric car last?

A battery electric car lasts about as long as a gasoline car. A study published in Nature Energy in January 2025, by researchers from the University of Birmingham, the London School of Economics, UC San Diego and the University of Bern, analyzed every UK MOT inspection from 2005 to 2022, nearly 300 million cars, and found an average lifespan of 18.4 years for battery electric cars, as reported by the Institution of Mechanical Engineers.

Electric cars are also improving faster than the others. Each successive production year of battery electric car showed a 12% lower likelihood of failure, against 6.7% for gasoline and 1.9% for diesel cars. The same study puts a battery electric car's useful life at up to 124,000 miles (200,000 km). The data is British, so it reflects UK driving distances and the MOT inspection, but it is the largest lifespan dataset published so far.

Source: Nature Energy, January 2025, as reported by IMechE.

How fast do EV batteries degrade?

Battery degradation is the gradual, permanent loss of a battery's usable capacity, which a driver sees as less range on a full charge. A battery's state of health (SoH) expresses what is left as a percentage of the capacity it had when new. Lithium-ion batteries age in two ways: calendar aging, which happens with time even in storage, and cyclical aging, which comes from charging and discharging.

EV battery degradation does not follow a straight line. Recurrent describes an S-shaped curve: a quicker drop in the first years, a long period of slow, steady aging, and a sharp decline at the very end of the battery's life. Software and battery management systems smooth out the early drop, and Recurrent's data shows cars from most major brands keeping 95% or more of their expected range after three years.

Tested used cars confirm it. Adam George of Cox Automotive told NPR that 2, 3 and 4-year-old off-lease EVs return with battery health scores well above 95%, and that across nearly 80,000 EVs tested the average battery health was 92%. That pool leans toward younger cars, because most EVs on the road today are only a few years old.

For a 300-mile (483 km) EV, applying Geotab's 2.3% yearly average in a straight line gives the illustration below. It is an estimate built from a fleet average, not a guarantee for any model: a real battery follows the S-curve, often losing a little more at first and less afterwards, and each car's charging habits and climate move it up or down.

Calculated from Geotab's 2026 fleet average of 2.3% per year (Geotab). Compounding the same rate instead of subtracting it gives about 79% at ten years.

What makes an EV battery wear out faster?

Charging power is the biggest factor in Geotab's 2026 data, ahead of climate. EVs that frequently used DC fast charging above 100 kW lost up to 3.0% of their capacity per year, roughly double the 1.5% of vehicles that mostly used AC or lower-power charging. DC fast charging is the high-power public charging found along highways, which feeds the battery directly instead of going through the car's onboard charger.

State of charge (SoC), the battery's charge level as a percentage, matters less than many owners fear. Geotab found that degradation accelerates only when a vehicle spends more than 80% of its time at a very high or very low state of charge. Heavy use costs a little too: the most-driven vehicles degraded about 0.8% per year faster than the least-driven, which Geotab calls an acceptable tradeoff for the miles they cover.

Battery design matters as well. Thermal management, the system that keeps the cells at a safe temperature, protects them from heat. In older Geotab data, the liquid-cooled 2015 Tesla Model S averaged 2.3% degradation per year against 4.2% for the passively air-cooled 2015 Nissan Leaf (Geotab). Many newer EVs also use lithium iron phosphate (LFP) cells, which NPR notes last even longer than other lithium-ion chemistries.

Source: Geotab, January 13, 2026.

How to make your EV battery last longer

An EV battery lasts longer when it avoids heat, long stays at the extremes of its charge, and a steady diet of high-power fast charging. The advice below comes from Recurrent, Geotab and Stanford researcher Simona Onori, as reported by NPR, and from the U.S. Department of Energy.

• Charge to about 80% for daily driving. Recurrent's Liz Najman suggests running down to about 20% and charging up to about 80%, and charging to 100% only before a road trip.
• Use Level 1 or Level 2 at home for routine charging. Geotab measured about 1.5% loss per year for mostly AC charging. The guide to Level 1 vs Level 2 charging shows which one keeps up with your driving.
• Save DC fast charging for trips. Frequent fast charging above 100 kW is linked to up to 3.0% loss per year. Onori's advice: do some slow charging from time to time.
• Keep the car out of the heat. Park in the shade or in a garage in hot weather; Geotab found hot climates add about 0.4% per year.
• Do not leave it parked at 100% or near empty. Degradation speeds up when a car spends most of its time at a very high or very low state of charge.
• Follow the coolant checks in the manual. Some battery systems use liquid coolant to hold a safe temperature, and the Department of Energy notes they may need regular checks.

What does an EV battery warranty cover?

An EV battery warranty in the US typically runs 8 years or 100,000 miles, whichever comes first. The Department of Energy's Alternative Fuels Data Center notes that many manufacturers offer 8-year, 100,000-mile warranties, and Recurrent calls it the standard US battery warranty.

The warranty covers capacity as well as outright failure, but only below a threshold the manufacturer sets, usually 70% of the original capacity. Recurrent's examples: the Tesla Model 3 Standard Range battery is guaranteed to keep 70% for 8 years or 100,000 miles, and Hyundai EV batteries from 2020 onward are guaranteed to keep 70% for 10 years or 100,000 miles. A battery at 75% after seven years is worn but still inside the terms, so read the booklet for your own car's figure.

A hybrid's battery carries a warranty of its own, typically 8 to 10 years in the US; the guide to hybrid car maintenance covers them.

Does California require a 10-year, 150,000-mile EV battery warranty?

No. The 10-year, 150,000-mile figure that circulates online comes from California's Advanced Clean Cars II (ACC II) rules, and it is a range durability requirement, not a battery warranty. As summarized by WardsAuto, ACC II asks that a vehicle keep 70% of its electric range for 10 years or 150,000 miles from model year 2026, rising to 80% from model year 2030.

The ACC II battery warranty is a separate rule: 70% of the battery's energy for 8 years or 100,000 miles for model years 2026 to 2030, and 75% from model year 2031. ACC II also asks for a state of health readout the owner can see. California needs a federal waiver to enforce its vehicle emission rules, and Congress revoked the ACC II waiver in a resolution signed into law in June 2025.

California and ten other states sued over that revocation, and the case was still pending in September 2026, according to Jones Day and Arnold & Porter. Until it is settled, treat the warranty booklet that came with the car as the only guarantee you have.

How much does it cost to replace an EV battery?

Replacing the high-voltage battery of an EV can cost in the ballpark of $5,000 to $20,000, according to NPR. Manufacturers typically do not publish replacement battery prices, the Department of Energy notes, so a dealer quote is the only reliable figure for a specific car.

Few owners pay it. Inside the warranty, automakers replace a battery for a defect or a catastrophic failure, or when capacity falls to about 70% of the original or less. Outside it, replacements stay rare: about 0.3% of 2022 and newer EVs in Recurrent's data.

An aging battery does not fail like a worn engine; it holds less energy, so the range shrinks. Some owners of older EVs keep driving with less range rather than pay for a new pack: one BMW i3 owner told NPR his 2014 car manages about 55 miles per charge in winter, and he would rather keep it that way than spend an estimated $6,000 on a battery.

Battery lifespan vs range per charge: which one are you asking about?

Battery lifespan is how many years and miles a pack lasts before it is worn out. How long an EV battery lasts on a single charge is a different question: that is range, which depends on the model's rated range, speed, temperature and climate control use. The EPA range on the window sticker is the starting point for range per charge, and a worn battery lowers it by roughly the share of capacity lost.

How to check and track your own EV battery health

The first source is the car itself. Some EVs show battery health or estimated full-charge range in a menu or a service report, and a dealer can run a battery health test. A falling range estimate on its own is a weak signal, because cold weather, speed and climate control change it from week to week.

A charging log gives a steadier signal. For each session record the energy added in kWh, the charger type, the battery percentage before and after, and the odometer. The energy needed for the same percentage swing estimates usable capacity: 46 kWh drawn from a home Level 2 charger at about 89% efficiency, the Level 2 average in a 2014 study summarized by Recurrent, puts about 41 kWh into the battery, and if that took the battery from 20% to 80%, the pack holds about 68 kWh.

Compare like with like: the same charger, similar temperatures, similar swings, over months rather than days. A steady drop well beyond the 2.3% yearly average, or a range near the warranty threshold, is a reason to ask the dealer for a battery test while the warranty still runs. The same log shows your real share of DC fast charging, the habit Geotab ties most closely to faster wear.

A complete charging and service history also helps when the car is sold. A buyer of a used EV wants to know how it was charged and when its battery was checked, and the guide to car maintenance records covers what a usable record needs.

Key takeaways: how long EV batteries last

The whole article in six lines.

• Average loss: about 2.3% of capacity per year across more than 22,700 EVs (Geotab, 2026), about 77% to 79% left after ten years as an estimate.
• Replacements are rare: under 4% of EVs of any age outside big recalls, about 0.3% of 2022 and newer models (Recurrent, 2025).
• The car lasts too: 18.4 years for battery electric cars against 18.7 for gasoline and 16.8 for diesel in UK data (Nature Energy, 2025).
• Fast charging is the biggest factor: up to 3.0% per year with frequent DC fast charging above 100 kW, about 1.5% with mostly AC charging.
• Warranty: usually 8 years or 100,000 miles, with a capacity threshold around 70%; California's 10-year, 150,000-mile figure is a range durability rule, not a warranty.
• Replacement cost: roughly $5,000 to $20,000 out of warranty (NPR, 2026); manufacturers rarely publish prices.

Track your charging and your battery checks

WrenchTime, an iPhone app for maintenance, fuel, charging and mileage on cars and motorcycles, keeps a charging log for electric and plug-in hybrid vehicles. Each session records energy in kWh, cost, charger type (Level 1, Level 2 or DC fast), location, battery percentage before and after, odometer and notes, and the app shows charging efficiency, a home charging ratio and a charger type breakdown chart, so your real share of DC fast charging is one glance away. WrenchTime does not read battery health from the car; it keeps the record you compare it against.

Battery health check is one of its EV maintenance procedures, so you can log a dealer's battery test with its date, odometer and notes, and schedule the next one by date or by odometer reading. The free version covers 1 vehicle with 3 charging entries and 2 maintenance entries per month, with CSV and PDF export included, and WrenchTime Pro removes the limits. The EV charging log guide covers the details. Download WrenchTime on the App Store.