Reliability

Hyundai Motor Group

Hyundai Kona Electric / Kia Niro EV (64 kWh, first generation)

NCM 622 cells from LG Chem (Kona Electric); SK Innovation (Niro EV) · 64 kWh · used in 2 model variants.

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Pack reference

NCM 622 · LG Chem (Kona Electric); SK Innovation (Niro EV) · Liquid-cooled, 356-volt pack (3P98S)
About the pack
Capacity
64 kWh
as published
Fast charge
77 kW
peak · about 47 min to 80%
Warranty floor
70%
capacity floor at 10 yr / 100k mi

Pack overview

ChemistryNCM 622
Cell supplierLG Chem (Kona Electric); SK Innovation (Niro EV)
Cell formatLithium-ion polymer
Voltage (nominal)356 V
CoolingLiquid
ArchitectureLiquid-cooled, 356-volt pack (3P98S)
Warranty 10 yr / 100k mi
Capacity floor70%

Known issues

High
NHTSA 20V-630 (October 2020) covers certain 2019-2020 Kona Electric vehicles, and 21V-127 (March 2021) covers certain 2019-2020 Kona Electric and 2020 Ioniq Electric vehicles. In both, the lithium-ion battery may short-circuit and catch fire, and owners were told to park outside and away from structures. The first remedy was a battery management software update with a battery inspection. Under the second, dealers inspect the battery system assembly and replace it if necessary, free of charge.
Low
The pack runs at 356 volts. Hyundai quotes 10 to 80 percent in about 47 minutes on a 100 kW charger for the 2022-2023 Kona Electric, and about 54 minutes from empty to 80 percent for 2019-2021 cars.
Low
Hyundai sold the 2019 Kona Electric with a Lifetime Battery Warranty and moved to 10 years or 100,000 miles from the 2020 model year.

How this pack ages (industry context)

Industry fleet aggregates: 2.3% average annual capacity loss across 22,700 EVs / 21 models (Geotab, 2026), and 95% range retention at 5 years on average across 30,000+ vehicles (Recurrent, 2026).

OEM warranty floor on this pack: 10 yr / 100k mi to 70% capacity.

Public per-pack degradation curves are not available for most models. Individual results vary materially with climate, charging behavior, and DC fast-charge frequency.

Vehicles using this pack

Battery-Related NHTSA Recalls

Recalls affecting battery, charging, electric propulsion, or thermal-event systems on vehicles using this pack, as of the last complaint-data run. Each campaign names the model generation it was filed against; the summary gives the model years covered.

24V358000 May 21, 2024 ELECTRICAL SYSTEM:PROPULSION SYSTEM:SHOCK PROTECTION

Kia America, Inc. (Kia) is recalling certain 2022 Niro EV vehicles. The high voltage battery safety plug may overheat and melt, which can cause a loss of drive power or fire.

Consequence: A loss of drive power increases the risk of a crash, and a fire increases the risk of injury.

Filed against: Kia Niro 2019-2022

22V941000 Dec 16, 2022 ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:FLUID/COOLANT

Hyundai Motor America (Hyundai) is recalling certain 2021 Kona EV vehicles. The Electric Power Control Unit (EPCU) may have been improperly sealed and may leak coolant internally.

Consequence: Coolant contacting the EPCU circuit board may cause a loss of drive power, increasing the risk of a crash.

Filed against: Hyundai Kona 2019-2023

22V899000 Dec 6, 2022 ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:THERMAL MANAGEMENT:FLUID/COOLANT

Kia America, Inc. (Kia) is recalling certain 2020 Niro EV vehicles. The Electric Power Control Unit (EPCU) may have been improperly sealed and may leak coolant internally.

Consequence: Coolant contacting the EPCU circuit board may cause a loss of drive power, increasing the risk of a crash.

Filed against: Kia Niro 2019-2022

21V127000 Mar 1, 2021 ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

Hyundai Motor America (Hyundai) is recalling certain 2019-2020 Kona Electric and 2020 Ioniq Electric vehicles. The lithium-ion (Li-ion) battery may short-circuit.

Consequence: An electrical short in the Li-ion battery increases the risk of a fire.

Filed against: Hyundai Kona 2019-2023

20V630000 Oct 13, 2020 ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM):SOFTWARE

Hyundai Motor America (Hyundai) is recalling certain 2019-2020 Kona Electric vehicles. The lithium-ion (Li-ion) battery may short-circuit.

Consequence: An electrical short in the Li-ion battery increases the risk of a fire.

Filed against: Hyundai Kona 2019-2023

For TWD editorial coverage of major recall campaigns, see /recalls/.

Frequently Asked Questions

What chemistry is the Hyundai Kona Electric / Kia Niro EV (64 kWh, first generation)?

The Hyundai Kona Electric / Kia Niro EV (64 kWh, first generation) uses NCM 622 chemistry. Cells are supplied by LG Chem (Kona Electric); SK Innovation (Niro EV). Cell format: Lithium-ion polymer. Pack architecture: Liquid-cooled, 356-volt pack (3P98S).

What is the warranty on this pack?

10 years or 100,000 miles, with capacity coverage to 70% of original. Specific terms vary by year and trim; check the manufacturer's warranty booklet for the exact vehicle.

How much does this pack degrade over time?

Industry-wide fleet aggregates show roughly 2.3% average annual capacity loss across 22,700 EVs (Geotab, 2026), with about 95% range retention at five years on average across Recurrent's 30,000+ vehicle fleet (2026). Public per-pack degradation curves are not available for most models. The Hyundai Kona Electric / Kia Niro EV (64 kWh, first generation) battery warranty runs 10 years / 100,000 miles to a 70% capacity floor, which is the OEM-guaranteed minimum within that period. Individual results vary with climate, charging habits, and DC fast-charging frequency.

Which vehicles use the Hyundai Kona Electric / Kia Niro EV (64 kWh, first generation)?

Hyundai Kona 2019-2023 (Kona Electric only); Kia Niro 2019-2022 (Niro EV only).

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