The IONIQ 5 is one of the better-engineered electric cars sold in Australia — 800-volt architecture, fast DC charging, genuinely good thermal management. Its packs age well.
The oddity is the warranty. Hyundai covers the high-voltage battery for 8 years or 160,000 km, transferable, but publishes no minimum State of Health percentage anywhere — not on its warranty page, not in its warranty terms document. The only capacity-related commitment is that a replacement battery will at least match the original's capacity before failure.
Kia — the same corporate group, sharing the same platform on the EV6 — does publish a 70% floor. Two closely related cars, two different positions on the thing that matters most to a used buyer.
Note too that a widely-circulated Australian comparison source states Hyundai guarantees 70%. It does not. We checked Hyundai's own documents specifically. Full detail: Hyundai battery warranty in Australia.
The packs Australia got
| Variant | Years | Usable kWh | Claimed range | Real-world consumption |
|---|---|---|---|---|
| Standard Range RWD (58 kWh) | 2021–2024 | 54.0 (58.0 gross) | 400 km | 18.3 kWh/100km — modelled |
| Extended Range RWD (77.4 kWh) | 2022–2024 | 74.0 (77.4 gross) | 507 km | 16.6 kWh/100km — modelled, mild-weather |
| 84 kWh RWD | 2025–2026 | 80.0 (84.0 gross) | 570 km | 15.4 kWh/100km — modelled, mild-weather |
| 84 kWh AWD | 2025–2026 | 80.0 (84.0 gross) | 546 km | 18.0 kWh/100km — modelled |
Two of those consumption figures carry a caveat we are not going to bury. The Extended Range RWD and the 84 kWh RWD figures are EV Database mild-weather estimates rather than combined figures. They are optimistic. In a warm Australian climate they are not unreasonable, but they are not like-for-like with the other rows and you should not plan a winter road trip on them.
What normal looks like
A well-kept IONIQ 5 under four years old should measure in the high eighties to low nineties. The 800-volt system and active cooling mean these cars tolerate frequent DC fast charging better than most — which is fortunate, because the ability to charge very quickly is exactly why people fast-charge them often.
With no published floor, though, there is nothing to measure against except what is typical. That makes a comparative figure — how this car sits against others of its age and distance — more useful than an absolute one.
What to check before you buy
Which pack — 54, 74 or 80 kWh usable, a 26 kWh spread
Measured State of Health, which here is the only capacity information anyone will give you
Cell voltage spread
In-service date and odometer against 8 years and 160,000 km
Whether it was used commercially, common on 800-volt cars used for long-distance work
Capacity data verified 13 September 2026. Consumption figures marked "modelled" are EV Database estimates; those additionally marked "mild-weather" are optimistic relative to a combined figure and are flagged as such above.