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Used Hyundai IONIQ 5 battery health & degradation data
Last updated: · 6 sourced data points
In AVILOO's 2026 report the IONIQ 5 had the highest median SoH of all 20 models at 50,000 and 100,000 km. Sources: AVILOO GmbH.
Battery options: 58 kWh, 72.6 kWh, 77.4 kWh, 84 kWh.
Battery health by mileage (independent tests)
| Mileage | Median SoH | Range covering 99% of tested cars |
|---|---|---|
| 50,000 km (≈31,069 mi) | 97.1% | 91.7% – 99.2% |
| 100,000 km (≈62,137 mi) | 95.3% | 89.1% – 98.4% |
| 150,000 km (≈93,206 mi) | 93.8% | 86.7% – 97.8% |
Source: AVILOO GmbH, published 2026-09-03; n=11,328 tests of this model (all battery sizes grouped, global). Bar scale 75–100%.
All data points
| Variant | Mileage | SoH | Type | Sample | Measured by | Source (date) |
|---|---|---|---|---|---|---|
| All battery variants grouped | 50,000 km ≈ 31,069 mi |
97.1% 99% band 91.7%–99.2% |
Median | n=11,328 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| All battery variants grouped | 100,000 km ≈ 62,137 mi |
95.3% 99% band 89.1%–98.4% |
Median | n=11,328 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| All battery variants grouped | 150,000 km ≈ 93,206 mi |
93.8% 99% band 86.7%–97.8% |
Median | n=11,328 | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) Band = central 99% of tested cars (p0.5–p99.5). |
| IONIQ 5 72.6 kWh | 50,000 km ≈ 31,069 mi |
97.3% | Median | n/a | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) |
| IONIQ 5 72.6 kWh | 100,000 km ≈ 62,137 mi |
95.1% | Median | n/a | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) |
| IONIQ 5 72.6 kWh | 150,000 km ≈ 93,206 mi |
93.4% | Median | n/a | AVILOO FLASH Test | AVILOO GmbH (2026-09-03) |
Data gaps: Only AVILOO data so far; no UK-specific data.
What to check when buying a used IONIQ 5
- Even for the best-rated model, AVILOO found the spread between cars grows to over 12 percentage points by 150,000 km. (AVILOO GmbH)
- 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)
Hyundai UK: 8 years or 100,000 miles for new production models (from 2020); restores at least 70% of original capacity. 5 years / 100,000 miles for taxi/private-hire use. Source: Hyundai Motor 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 Hyundai IONIQ 5?
In AVILOO's 2026 report (independent tests, all battery sizes grouped) the median SoH was 97.1% at 50,000 km, 95.3% at 100,000 km and 93.8% at 150,000 km. 99% of tested cars at 100,000 km fell between 89.1% and 98.4%.
What is the Hyundai IONIQ 5 battery warranty in the UK?
Hyundai UK: 8 years or 100,000 miles for new production models (from 2020); restores at least 70% of original capacity. 5 years / 100,000 miles for taxi/private-hire use.
How can I check the battery of a specific Hyundai IONIQ 5?
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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