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Hyundai Ioniq 5 · Aviloo Certified · South Wales

Hyundai Ioniq 5 battery
health check. £79.

The Ioniq 5 is increasingly appearing on the used market at significant price points. An Aviloo certificate costs £79 and provides independent evidence of battery health that protects both buyer and seller on transactions worth £20,000 or more.

Why check an Ioniq 5?

Premium price. The battery is the asset.

The Hyundai Ioniq 5 uses an 800V architecture with liquid thermal management. It handles fast charging well and the battery has shown good longevity in early data. However, at the price point of used Ioniq 5 examples, independent battery evidence is a straightforward way to protect a significant purchase.

There have also been software updates that affect the displayed range and charging behaviour on some models. An Aviloo test measures the actual physical cell capacity, not the software-reported figure, so it gives you a true picture regardless of what software version is installed.

Higher degradation risk
  • Very high DC rapid charge frequency
  • Pre-update software issues on early builds
  • Demonstrator or fleet use with high mileage
  • Used examples without service history
Lower degradation risk
  • 800V architecture handles fast charge well
  • Active liquid thermal management
  • Generally excellent cell chemistry
  • Strong Hyundai battery warranty backing
Typical SOH for Ioniq 5

What to expect.

The Ioniq 5 is relatively new on the used market. Most examples currently available are 2021 to 2023 models.

2021 to 2022
Typically 91 to 97% SOH. Most examples excellent. Very low degradation rates at this age.
2022 to 2023
Typically 93 to 98% SOH. Should be near-new condition. Any result below 90% warrants investigation.
High mileage 30k plus
Typically 88 to 95% SOH. Thermal management keeps degradation gradual even with heavy use.
Demonstrator use
Typically 86 to 93% SOH. Heavy DC fast charging in demos can accelerate degradation slightly.
What the Aviloo test shows

Cell-level analysis. Not BMS self-reporting.

Your certificate shows
  • Exact SOH percentage
  • Remaining usable capacity in kWh
  • Cell-level fault detection
  • Red Flag alerts for hidden issues
  • Independent TUV-certified result
Why not just use OBD?
  • OBD reads BMS self-reported data
  • Cannot detect masked cell degradation
  • No certification or chain of custody
  • Cannot support warranty claims
  • Full comparison
Common questions

Hyundai Ioniq 5 FAQ

Does the Hyundai Ioniq 5 have battery problems?

The Ioniq 5 has had some software-related range and charging issues reported, but the physical battery has generally shown good durability. The 800V architecture and liquid thermal management protect the cells well. Pre-purchase checks are still recommended given the price point of used examples.

What is a good SOH for a used Ioniq 5?

Given the Ioniq 5 is relatively new on the used market, most 2021 to 2023 examples should show 90% SOH or above on an Aviloo test. Any result below 88% on a car under 3 years old warrants investigation.

Does the Ioniq 5 support fast charging?

Yes. The 800V architecture allows 350kW DC charging in theory, and real-world 220kW charging is achievable. The thermal management handles repeated fast charging well, which is a key advantage over passive-cooled EVs.

Is an Aviloo test worth it on a newer Ioniq 5?

Yes, particularly if you are spending over £20,000. The Ioniq 5 is covered by the Aviloo FLASH test and the certificate carries genuine commercial weight if you sell the car later. It also gives you a baseline for any future warranty discussions.

South Wales · Mobile · £79

Know your Hyundai Ioniq 5's battery.
Book today.

PAD comes to your address, tests in 20 minutes, and emails your official Aviloo certificate the same day. No deposit. Cancel anytime.