Kia EV4 Battery: Complete Guide
The Kia EV4 battery is available in 58.3 kWh (Standard Range) and 81.4 kWh (Long Range) — both NMC on a 400V E-GMP platform.
Quick answer
The Kia EV4 battery comes in two sizes: a 58.3 kWh Standard Range pack (55 kWh usable) and an 81.4 kWh Long Range pack (78 kWh usable), both NMC cells on a 400-volt E-GMP platform. DC fast charging peaks at 127 kW and fills 10–80% in 29–31 minutes. Range is up to 388 miles (WLTP, hatchback); Kia’s US estimates were 235 and 330 miles, but the US launch has been delayed until further notice.
Key figures: Usable 55 / 78 kWh · 400V, up to 127 kW DC · 10–80% in 29–31 min · US warranty 10 years / 100,000 miles · On sale in Europe, Korea and Canada
The Long Range hatchback delivers 388 miles WLTP; the Long Range Fastback sedan reaches 391 miles WLTP — thanks to a more aerodynamic roofline.
DC fast charging peaks at 101–127 kW, completing 10–80% in just 29–31 minutes. The US-spec EV4 shown in New York carried a native NACS port for direct Supercharger access, and that is expected to stay if the US launch is revived.
Kia’s 10-year / 100,000-mile battery warranty applies in the U.S.; the UK and Europe get Kia’s 7-year / 100,000-mile cover instead — and the EV4 effectively delivers EV6 range at EV3 pricing.
Kia EV4 US Launch: Delayed Until Further Notice
The EV4 was revealed for the US at the 2025 New York Auto Show in sedan (Fastback) form, with sales planned for early 2026 and Kia-estimated ranges of 235 miles (58.3 kWh) and 330 miles (81.4 kWh). In late 2025, Kia postponed the US launch ‘until further notice’, citing changed market conditions. No new date has been announced.
The car itself is on sale elsewhere: the hatchback and Fastback sell across Europe and South Korea, and the EV4 is also available in Canada (from CAD $38,995). The US was only ever set to receive the Korean-built sedan, never the Slovak-built hatchback. This guide therefore labels the announced US specifications as estimates — final US pricing and official EPA ratings were never published.
Kia EV4 Battery: Full Specs
Kia EV4 Battery Size and Usable Capacity
The Kia EV4 battery size is 58.3 kWh in Standard Range form and 81.4 kWh as a Long Range. Usable capacity is 55 kWh and 78 kWh respectively. Both packs use NMC cells on a 400-volt version of Hyundai-Kia’s E-GMP platform.
| Specification | Standard Range (58.3 kWh) | Long Range (81.4 kWh) |
|---|---|---|
| Battery capacity | 58.3 kWh NMC | 81.4 kWh NMC |
| Usable capacity | ~55 kWh | ~78 kWh |
| Architecture | 400V E-GMP | 400V E-GMP |
| WLTP range (hatch) | 273–388 miles (440–625 km) | ~367–388 miles |
| WLTP range (Fastback/Sedan) | Not offered (Long Range only) | Up to 391 miles (WLTP) |
| Motor power | 150 kW (201 hp) FWD | 150 kW (201 hp) FWD |
| Torque | ~283 Nm (209 lb-ft) | ~283 Nm |
| 0–100 km/h | ~7.4 sec | ~7.7 sec |
| Peak DC rate | 101–127 kW | 101–127 kW |
| 10–80% DC time | ~29 min | ~31 min |
| AC onboard charger | 11 kW | 11 kW |
| V2L capability | Standard | Standard |
| Charging port (U.S.) | Native NACS (US spec, as announced) | Native NACS (US spec, as announced) |
| Starting price (UK) | ~£34,745 | ~£37,945 |
| Starting price (U.S., est.) | Delayed — not on sale | Delayed — not on sale |
US figures are Kia’s pre-launch EPA estimates (235 miles Standard Range, 330 miles Long Range). Final EPA ratings were never published because the US launch is delayed.
EV4 vs EV6: Why 400V Instead of 800V
The EV4 deliberately uses a 400V E-GMP platform — not the 800V system found in the EV6, EV9, and Ioniq 5. This is a cost decision — 400V inverters, cables, and battery management hardware are significantly cheaper than 800V components. The savings allow Kia to price the EV4 approximately £7,000–£10,000 less than the EV6.
The trade-off is DC charging speed — 101–127 kW vs the EV6’s 258 kW, resulting in 29–31 minutes for 10–80% vs the EV6’s 18 minutes.
For buyers who primarily charge at home and use DC charging occasionally, the 400V limitation is largely invisible. The 29-minute 10–80% session is still fast enough for most road-trip scenarios — fitting naturally into a meal stop.
The EV4’s target buyer is someone who wants EV6 range and quality at EV3 pricing — and the 388-mile WLTP Long Range delivers exactly that at approximately £38,000.
Read more: EV battery chemistry explained — what the EV4’s NMC cells mean for life and charging
Two Body Styles: Hatchback and Fastback
The EV4 is unique in offering two body styles. The Hatchback (built in Slovakia) is sold primarily in Europe — 4.4 metres long with a 5-door hatchback boot and 435 litres of cargo space. The Fastback sedan (built in South Korea) was the version planned for the US market; the hatchback is built in Slovakia for Europe.
The Fastback’s lower roofline gives it a slightly more aerodynamic profile — explaining its 391-mile WLTP vs the hatchback’s 388 miles. Both share identical powertrains, batteries, and charging specs.
EV4 Charging Speeds
| Method | Power | Standard (55 kWh usable) | Long Range (78 kWh usable) |
|---|---|---|---|
| Level 2 (7.4 kW) | 7.4 kW | ~8 hours full | ~12.5 hours full |
| Level 2 (11 kW) | 11 kW | ~5.3 hours full | ~8.5 hours full |
| DC Fast (101–127 kW) | 101–127 kW peak | ~29 min (10–80%) | ~31 min (10–80%) |
Real-World Range
- Long Range hatch (78 kWh), mild weather, mixed roads: Carwow returned 3.9 miles/kWh — approximately 315 miles real-world
- Long Range (78 kWh), motorway-heavy: Approximately 317 miles per a Carwow week-long motorway test
- A heat pump is a £900 option offered only on the top GT-Line S trim.
- Long Range, cold winter test (electrive.com): Approximately 260–270 miles in single-digit temperatures — consistent with 15–20% below WLTP figure
Heat Pump: Optional on Top Trim Only
The heat pump is a £900 / €900 option — available only on the GT-Line S trim in the UK. Lower trims (Air, GT-Line) cannot have a heat pump fitted. This is a significant limitation for cold-climate buyers who cannot or won’t pay for the top trim. The electrive.com winter test showed a notable range drop in single-digit temperatures partly attributable to resistance heating. Buyers in cold climates should budget for the GT-Line S to access the heat pump option.
Battery Warranty
Kia covers the EV4 battery with a 10-year / 100,000-mile warranty in the U.S. — among the longest battery warranties in the American market, matched only by Hyundai. The vehicle warranty in the U.S. is 5 years / 60,000 miles basic plus 10 years powertrain.
UK and European warranty is 7 years / 100,000 miles — also class-leading. Expect typical NMC degradation of roughly 1.5–2% per year in normal use, in line with other modern E-GMP cars. The 78 kWh usable capacity means even 20% degradation leaves ~62 kWh — still 230+ miles of range.
Kia EV4 vs Competitors
| Model | Battery (Usable) | WLTP/EPA Range | DC Rate | Warranty | Starting Price |
|---|---|---|---|---|---|
| Kia EV4 LR (Hatchback) | ~78 kWh NMC | 388 mi WLTP | 127 kW | 10 yr / 100k mi | ~£37,945 |
| VW ID.3 Pro (58 kWh) | 58 kWh NMC | ~265 mi WLTP | 183 kW | 8 yr / 160k km | ~£36,000 |
| Hyundai Ioniq 6 LR RWD | 77.4 kWh | 361 mi EPA | 233 kW | 10 yr / 100k mi | ~$42,000 |
| Tesla Model 3 LR RWD | ~75 kWh NMC | 363 mi EPA | 250 kW | 8 yr / 120k mi | ~$45,990 |
Full specs for the Tesla rival listed above are in our Tesla Model 3 Highland battery guide.
Charging Tips for Kia EV4 Owners
- Set daily charge to 80%: NMC benefits from avoiding 100% daily — 80% of 78 kWh provides ~62 kWh covering 240+ miles daily without stressing cells
- Battery preconditioning is standard on all EV4s: Unlike some rivals, preconditioning is not limited to top trims — the Kia navigation automatically activates it when routing to a DC charger
- The US-spec car was designed with a native NACS port, so no adapter is needed at Tesla Supercharger V3 or V4 stations; cars sold in Europe and Korea use CCS.
- Upgrade to GT-Line S if you live in a cold climate: The £900 heat pump option is only available on GT-Line S — it’s worth the upgrade for buyers in northern climates who will see significant winter range improvement
Conclusion
The Kia EV4 battery slots perfectly between the EV3 and EV6 in Kia’s lineup — 81.4 kWh NMC on 400V, 388 miles WLTP, 29–31-minute DC charging, native NACS, V2L standard, and Kia’s class-leading 10-year battery warranty.
The 400V architecture delivers honest charging speeds — 29 minutes for 10–80% suits most road-trip scenarios without requiring premium 800V infrastructure. The heat pump limitation on lower trims is the main caveat for cold-climate buyers. Buyers wanting the larger five-seat SUV body style instead should see our Kia EV5 battery guide for the closest sibling in Kia’s 400V lineup.
Frequently Asked Questions
What size battery does the Kia EV4 have?
Two sizes: a 58.3 kWh Standard Range pack with 55 kWh usable, and an 81.4 kWh Long Range pack with 78 kWh usable. Both use NMC cells on Kia’s 400-volt E-GMP platform.
What type of battery does the Kia EV4 use?
The EV4 uses NMC (nickel manganese cobalt) lithium-ion cells in both pack sizes, on a 400-volt electrical architecture. Kia does not offer an LFP version of the EV4.
How long does the Kia EV4 take to charge?
On a DC fast charger, 10–80% takes about 29 minutes (Standard Range) or 31 minutes (Long Range), peaking at up to 127 kW. At home on an 11 kW wallbox, a full charge takes roughly 5.3 hours (Standard Range) or 8.5 hours (Long Range).
What is the Kia EV4’s range?
Up to 388 miles (WLTP) for the Long Range hatchback, and up to 391 miles (WLTP) for the Fastback. For the planned US sedan, Kia estimated 235 miles from the 58.3 kWh battery and 330 miles from the 81.4 kWh battery; final EPA ratings were never published.
Is the Kia EV4 on sale in the US?
Not yet. Kia showed the US-spec sedan at the 2025 New York Auto Show and planned an early-2026 launch, then postponed it ‘until further notice’ in late 2025. The EV4 is on sale in Europe, South Korea and Canada.
How long is the Kia EV4 battery warranty?
In the US, Kia’s battery warranty runs 10 years or 100,000 miles. In the UK and Europe it is 7 years or 100,000 miles.
Does the Kia EV4 have a heat pump?
Only as a £900 option on the top GT-Line S trim in the UK. It is not standard, and it cannot be added to the Air or GT-Line trims.
