One of the biggest arguments against buying an electric vehicle has long been battery longevity. Critics have questioned whether expensive battery packs would survive beyond a few years or require costly replacements before the rest of the car wore out.

According to a report by The Wall Street Journal, real-world data is beginning to tell a very different story. Modern EV batteries are proving significantly more durable than expected, with many vehicles retaining most of their original range even after hundreds of thousands of miles. The findings could reshape consumer confidence as the industry continues pushing electric vehicles into the mainstream.

　　Real-world data suggests modern EV batteries are built for the long haul

The report highlights the case of Richard Symons, a UK-based used EV dealer whose five-year-old Tesla Model 3 has already covered 247,000 miles while still comfortably completing long-distance journeys. His experience mirrors what researchers and industry analysts are increasingly seeing across newer generations of electric vehicles: battery degradation is occurring much more slowly than many buyers originally feared.

Recommended Videos Battery analytics company Recurrent estimates that after five years of ownership, the average EV still retains up to 95 percent of its original driving range, exceeding many early expectations. That improvement is largely due to advances in battery chemistry, thermal management systems, and sophisticated battery-management software that better protects cells from long-term wear.

Those improvements are also reflected in repair data. According to Recurrent, roughly one in 12 electric vehicles built between 2011 and 2016 eventually required battery replacements. For EVs produced from 2022 onward, that figure has dropped dramatically to just 0.3 percent. Early models such as the original Nissan Leaf lacked modern battery cooling systems, making them far more susceptible to degradation than todays vehicles.

Consumer perception, however, has not fully caught up with reality. A 2025 survey by AutoPacific found that fears over expensive battery replacement remain the leading reason many prospective buyers avoid electric vehicles. Jessica Caldwell, head of insights at Edmunds, told the Journal that many consumers still approach EV batteries with considerable hesitation despite the improving reliability data.

　　That does not mean batteries are immune to wear

The report notes that frequent high-power DC fast charging accelerates battery degradation compared to slower charging methods. Data from Geotab shows batteries frequently charged at high power retain about 89.7 percent of their original capacity after several years, compared with 94.9 percent for vehicles relying primarily on lower-frequency fast charging. Charging to 100 percent regularly, allowing batteries to remain fully discharged for extended periods, and operating in extreme temperatures can also reduce long-term battery health. The comparison chart included in the report illustrates the widening gap in battery capacity between the two charging habits over time.

Battery replacement costs also remain significant, ranging from roughly $5,000 to $16,000 outside warranty depending on the manufacturer. However, many automakers now design battery packs to allow individual modules to be repaired instead of replacing the entire pack, reducing long-term ownership costs.

The findings arrive at a challenging moment for the EV industry. US electric vehicle sales have slowed in 2026 following changes to government incentives, but analysts quoted by the Journal expect adoption to resume its long-term growth. Consulting firm AlixPartners forecasts EVs will account for 11 percent of new US vehicle sales by 2030, while globally they are expected to approach 25 percent of all new car sales by the end of the decade. As more high-mileage electric vehicles continue proving their durability, one of the industrys biggest consumer concerns may gradually begin to disappear.