Hyundai Ioniq Electric Battery Health & Range: Used Buyer’s Guide

Quick answer

A used Hyundai Ioniq Electric (2016-2022) typically has usable ~28 kwh (30.5 total) or ~38.3 kwh (40.4 total, 2019 facelift), a WLTP range of around 193 miles for the 38.3 kwh car (the earlier 28 kwh predates wltp) when new, and a battery warranty of 8 years / 125,000 miles to 70% capacity (5 years / 100,000 miles if used as a taxi or private hire). The value of any individual car comes down to its battery health, check the real-world range now versus when new before you buy.

Hyundai Ioniq Electric at a glance

Body type	Liftback hatchback
Years	2016-2022
Battery (usable)	Usable ~28 kWh (30.5 total) or ~38.3 kWh (40.4 total, 2019 facelift)
WLTP range (new)	Around 193 miles for the 38.3 kWh car (the earlier 28 kWh predates WLTP)
Real-world range	Roughly 115-140 miles (28 kWh) or 150-200 miles (38.3 kWh), unusually efficient
Battery warranty	8 years / 125,000 miles to 70% capacity (5 years / 100,000 miles if used as a taxi or private hire)
Battery cooling	Forced-air cooling (28 kWh); liquid cooling on the 38.3 kWh facelift

Figures are typical across the model's life and vary by year and trim, treat them as a guide, not a guarantee for a specific car.

How the Ioniq Electric's battery ages

Battery cooling is a big part of the story: this car uses forced-air cooling (28 kwh); liquid cooling on the 38.3 kwh facelift. Cars that have spent their life on rapid chargers, been left sitting at 100%, or lived somewhere hot tend to lose capacity faster, which is why two identical Ioniq Electrics on the same mileage can be worth different amounts. Read more in our guide to what's normal for EV battery degradation.

What to watch out for on a used Hyundai Ioniq Electric

Two batteries (28 kWh to 2019, 38.3 kWh after) and adverts often quote the old flattering NEDC range figures
A June 2026 battery recall (cell voltage deviation) is outstanding on many cars, check by registration before buying
The newer 38.3 kWh car rapid-charges slower than the 28 kWh original (about 44 kW vs 69 kW peak)
Taxi or private-hire history cuts the battery warranty to 5 years / 100,000 miles, check how it was used, not just the mileage

Hyundai Ioniq Electric battery replacement cost

Hyundai publishes no UK list price for a replacement pack. One UK battery specialist indicatively quotes roughly £7,000 to £8,000 for a full Ioniq Electric battery, and the 2021 battery recall means a slice of the facelift cars already carry newer replacement packs.

In practice very few used EVs ever need a whole new pack: outright failure is rare, a battery that drops below its capacity threshold inside the warranty period is the manufacturer's problem rather than yours, and gradual range loss is the normal story. Before pricing up a replacement, check the car's estimated battery health, most “tired” EVs turn out to be perfectly usable cars at the right price.

What the Used EV Check shows for a Hyundai Ioniq Electric

Enter the registration and the Used EV Check returns, for that specific Ioniq Electric: its expected real-world range now versus when new, an estimated degradation figure, a battery-health grade where a manufacturer test record exists, and the battery warranty remaining in miles and months. It also pulls the full MOT and mileage history so you can spot clocking or a car that has covered far more motorway miles than the advert suggests.

It's the fastest way to tell a good Hyundai Ioniq Electric from a tired one before you drive out to view it. For the wider process, see our complete used-EV buyer's guide and how to check an EV's battery health.

Range and battery-health figures are estimates modelled from real-world data and are shown for the specific vehicle in the Used EV Check. Range data is powered by ClearWatt. A battery-health grade is shown where a manufacturer test record exists, it is a comparative grade, not a measured state-of-health percentage.

Range data powered by ClearWatt

Check a used Hyundai Ioniq Electric before you buy

Enter a registration to see this Ioniq Electric's battery health, real-world range now vs when new and remaining battery warranty, an instant report.

See the Used EV Check (£9.99) →Try the free EV check

Used Hyundai Ioniq Electric FAQ

How do I check a used Hyundai Ioniq Electric's battery health?+

You can't see battery state of health on the V5C, the MOT or the advert, and DVLA doesn't publish it. Enter the registration into the Used EV Check and it returns this Hyundai Ioniq Electric's estimated real-world range now versus when new, its degradation estimate, a battery-health grade where a manufacturer test record exists, and the remaining battery warranty. Range data is powered by ClearWatt.

How much battery degradation is normal on a used Hyundai Ioniq Electric?+

One of the gentlest EVs on its battery: exceptional efficiency and modest charging rates keep cell stress low, and the small buffer means the capacity you see is close to the truth. Battery recalls in 2021 and 2026 mean some cars carry newer replacement packs, so recall completion matters as much as age. As a rule of thumb, most EV batteries lose the first few percent early on and then settle to a slow decline, so a used Ioniq Electric that still returns close to its original range for its age and mileage is a good sign. The Used EV Check estimates this specific car's degradation for you.

What battery warranty does the Hyundai Ioniq Electric have?+

Hyundai Ioniq Electric battery warranty is typically 8 years / 125,000 miles to 70% capacity (5 years / 100,000 miles if used as a taxi or private hire). It covers the battery falling below a set capacity within that time or mileage, and it usually transfers to you as the next owner. The Used EV Check shows how much of the warranty is left in miles and months.

What is the real-world range of a used Hyundai Ioniq Electric?+

Around 193 miles for the 38.3 kWh car (the earlier 28 kWh predates WLTP) is the WLTP figure when new. In real use expect roughly 115-140 miles (28 kwh) or 150-200 miles (38.3 kwh), unusually efficient, and less again in cold weather or at motorway speeds. What matters on a used car is the expected range now, which the Used EV Check estimates for the specific vehicle rather than quoting the brochure.

Why does the newer 38.3 kWh Ioniq rapid-charge slower than the old 28 kWh car?+

Hyundai paired the 2019 facelift’s bigger battery with a more conservative charging curve: it peaks at around 44 kW against the original car’s 69 kW, so a 10 to 80 percent rapid charge takes roughly 50 minutes rather than about 20. It is one of the few cases where the newer EV is slower at a rapid charger, worth knowing if you regularly do longer trips.