Q8 e-tron battery degradation and used range
EV batteries lose capacity slowly. At the average rate measured across 22,700 EVs (2.3% a year), a 2019 Q8 e-tron rated for 329 km would have roughly 280 km of range today.
Q8 e-tron used range by model year
| Model year | Rated when new | Age (years) | At 1.5%/yr | At 2.3%/yr | At 3.0%/yr |
|---|---|---|---|---|---|
| 2019 | 329 km | 7 | 296 km | 280 km | 266 km |
| 2020 | 351 km | 6 | 321 km | 305 km | 292 km |
| 2021 | 357 km | 5 | 331 km | 318 km | 307 km |
| 2022 | 357 km | 4 | 336 km | 325 km | 316 km |
| 2023 | 364 km | 3 | 348 km | 339 km | 332 km |
| 2024 | 476 km | 2 | 462 km | 454 km | 448 km |
| 2025 | 438 km | 1 | 431 km | 428 km | 425 km |
The three columns reflect how the car was charged. Telematics firm Geotab found about 1.5% a year for EVs that rarely use DC fast chargers, 2.3% on average, and around 3% for EVs that fast-charge heavily at high power. Rated range is the longest version for each model year.
Checking a used Q8 e-tron
Ask the seller for a battery health or state-of-health report from a dealer or a battery-testing service, and check whether the original battery warranty still applies. A full charge that shows a much lower range estimate than this table, in mild weather, is worth questioning.
Rated range: Natural Resources Canada Fuel Consumption Ratings, battery-electric vehicles 2012-2026 (updated March 9, 2026), 2025 model year unless noted. Estimates explained in how we estimate.