New Data Paints a Strong Picture
Used EV batteries are holding up impressively well. A UK battery analytics company reviewed more than 8,000 electric vehicles in 2025. The average battery retained 95.15% of its original capacity. That level of performance highlights how durable modern EV packs have become.
The results show that battery technology continues to mature and deliver consistent real-world longevity.
Steady Performance Over Time
All batteries experience gradual capacity changes. However, the pace remains slower than many early projections suggested.
Vehicles aged two to three years showed a median capacity close to 97%. Even EVs between eight and twelve years old maintained a median above 85%. That means many older electric vehicles continue to provide reliable daily range. Most remain comfortably within manufacturer warranty benchmarks.
The data also shows consistency across brands and models. While driving style and climate influence long-term results, the overall trend remains encouraging.
Mileage Isn’t the Main Factor
Odometer readings tell only part of the story.
Many EVs with over 100,000 miles still retained between 88% and 95% of their initial capacity. That demonstrates how resilient modern battery systems can be.
Instead of mileage alone, factors such as charging habits and temperature exposure shape long-term performance. Moderate charging behavior and balanced usage support strong battery health over time.
Transparency Builds Buyer Confidence
Standardized battery health testing can further strengthen the used EV market. Clear data helps buyers understand remaining capacity with precision. It also supports stable resale values. The broader takeaway is clear.
Used EV batteries consistently deliver long service life and dependable performance. Real-world data now confirms what many owners already experience every day.
What This Means for Buyers
Today’s EV batteries deliver proven durability backed by real-world data. With strong capacity retention across age and mileage, used electric vehicles offer confidence, stability, and long-term value in the growing secondhand market.
