Kia's UK model pages state that the high-voltage battery warranty for its electric vehicles registered from 1 January 2024 is 8 years or 100,000 miles1. The same pages set out the position for cars registered earlier: the lithium-ion polymer battery warranty covered a minimum capacity for 84 months or 100,000 miles from first registration for cars registered up to 31/12/2023, against 96 months or 100,000 miles for cars registered from 01/01/20243.
The change is described on the pages for the EV6, the EV4 and the EV6 GT, and applies to EV models registered from that date rather than to a single model1. For EVs and plug-in hybrids, Kia guarantees 70 per cent battery capacity3. The manufacturer's warranty on the EV6 GT is given separately as 7 years or 100,000 miles3.
"These batteries are covered by the Kia warranty for a period of 7 years from initial registration or 100,000 miles, whichever comes first (8 years/100,000 miles for EV models registered from 01/01/2024)."
Battery sizes and ranges differ across the range. The EV6 is offered with a long-range 84.0 kWh pack, up from 77.4 kWh, and a standard-range 63 kWh pack, with range figures of up to 361 miles and up to 265 miles respectively1. The EV4's 388-mile figure applies to the long-range Air with the 81.4 kWh battery2. The EV6 GT has an 84 kWh pack and a range of up to 279 miles3.
| Model | Battery | Range | Price from |
|---|---|---|---|
| EV6 | 84.0 kWh long range / 63 kWh standard range | Up to 361 miles / up to 265 miles | £45,6351 |
| EV4 | 81.4 kWh long range | Up to 388 miles | £30,9952 |
| EV6 GT | 84 kWh | Up to 279 miles | £60,0353 |
Charging times are quoted as 10 to 80 per cent in 18 minutes for the EV6 and EV6 GT, with the EV6 requiring an 800 volt charger delivering at least 260 kW to reach maximum charging speed1. The EV4 is quoted at 400 volts and at least 128 kW2. Vehicle-to-load, which lets the car power external devices, is listed across the range, on the EV6 GT-Line S and on the EV41.
Why it matters for households
The battery is the most expensive single component in an electric car, so the length of cover on it shapes the risk a household carries after the car leaves the showroom. An eight-year, 100,000-mile term on models registered from 1 January 2024 extends that cover by a year compared with cars registered up to 31/12/20233. The capacity guarantee of 70 per cent sets a floor on usable range before a claim can be made3.
For a home weighing an electric car against a petrol or diesel one, the warranty term also bears on how long the vehicle is likely to remain useful for daily running and for charging at home. Vehicle-to-load capability, where fitted, allows the car's battery to run appliances rather than only the drivetrain, which changes what the battery is for1. Kia has not reported whether the warranty terms differ between battery sizes or trims.
What happens next
The pages carry offers on purchases of new Kia EV6, EV6 GT and EV4 models in the United Kingdom between 01.07.2026 and 30.09.20261. The EV4 offers include £3,750 off the purchase price for the Air and Motion derivatives through the Government Grant2. No further changes to the battery warranty have been reported.
Sources3 cited
- EV6 Electric Car | Kia UK, kia.com
- Kia EV4 Electric Car | Hatchback & Fastback | Kia UK, kia.com
- The EV6 GT - NEW CARS | Kia UK, kia.com