Used Kia EV6 battery health & degradation data
Last updated: · 2 sourced data points
Kia's EV6 shows high retention in Swedish dealer data: 95.95% average after >100,000 km (Carla) and 96.4% at ~79,500 km (Riddermarks). Sources: Carla AB, Ny Teknik / Riddermarks Bil.
Battery options: 58 kWh, 77.4 kWh, 84 kWh.
All data points
| Variant | Mileage | SoH | Type | Sample | Measured by | Source (date) |
|---|---|---|---|---|---|---|
| EV6 77.4 kWh | >100,000 km ≈ 62,137 mi |
96.0% | Average | n/a | AVILOO test (dealer) | Carla AB (2026-07-08) Average of tested cars with more than 100,000 km; sample size per model not published. |
| EV6 77.4 kWh | avg 79,517 km ≈ 49,410 mi |
96.4% | Average | n=242 | AVILOO quick test (dealer) | Ny Teknik / Riddermarks Bil (2026-06-18) 100% of tested cars above 90% SoH. Mileage is the average of tested cars. |
Data gaps: Not part of the AVILOO 20-model report; only Swedish averages so far (no mileage curve).
What to check when buying a used EV6
- Riddermarks: 100% of 242 EV6 77.4 kWh cars tested were above 90% SoH. (Ny Teknik / Riddermarks Bil)
- Compare any test result with the ranges above and with the ADAC rule of thumb: at least 92% at 50,000 km, 88% at 100,000 km, 84% at 150,000 km, 80% at 200,000 km. (ADAC)
Battery warranty (UK)
Kia UK: 70% minimum capacity for 84 months / 100,000 miles (registered up to 31/12/2023) or 96 months / 100,000 miles (registered from 01/01/2024). Source: Kia UK, checked 2026-10-20. Always confirm the terms for the specific car with the manufacturer.
Get this specific car tested
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Model averages can't tell you about the car in front of you. An independent battery test (typically a short OBD plug-in test, some remote) gives an SoH figure and often a certificate you can use when negotiating.
- AVILOO – Independent OBD-based battery test (FLASH / Premium) with certificate; available via partners in the UK and EU.
- Generational – UK remote battery health assessment and certificate, used by dealers and fleets.
Prices change – check the provider's site. Provider names are used for identification only.
FAQ
What battery health is normal for a used Kia EV6?
Published independent data is limited. The best available figure is 96.0% (average after >100,000 km, Carla 2026 (Sweden)). See the table for every data point and its source.
What is the Kia EV6 battery warranty in the UK?
Kia UK: 70% minimum capacity for 84 months / 100,000 miles (registered up to 31/12/2023) or 96 months / 100,000 miles (registered from 01/01/2024).
How can I check the battery of a specific Kia EV6?
Use an independent battery test (OBD-based or remote) and compare the result with the ranges on this page. Model averages cannot tell you the condition of one specific car.
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