Hyundai Motor Group
Hyundai e-GMP 77.4 kWh (NCM)
NCM 811 cells from SK On (Hungary, US plant from 2025) · 77.4 kWh total (74 kWh usable) · used in 5 model variants.
Hyundai e-GMP 77.4 kWh (NCM)
Pack overview
Known issues
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. Recalls are deduplicated across model variants; affected vehicles are listed for each campaign.
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.
Consequence: An electrical short in the high voltage battery system increases the risk of a fire.
Affects: Hyundai Ioniq 5 2022-2023; Hyundai Ioniq 5 2024-2025
Hyundai Motor America (Hyundai) is recalling certain 2024 IONIQ 6 vehicles. The differential gear bolts in the gear drive unit may not be tightened properly, which can result in a loss of drive power or cause the differential to lock up.
Consequence: A loss of drive power or differential lock up can increase the risk of a crash.
Affects: Hyundai Ioniq 6 2023-2025
Hyundai Motor America (Hyundai) is recalling certain 2023-2025 IONIQ 6 electric vehicles. The charging port door panel may detach.
Consequence: A detached charging port door panel can create a road hazard for other vehicles, increasing the risk of a crash.
Affects: Hyundai Ioniq 6 2023-2025
Hyundai Motor America (Hyundai) is recalling certain 2025-2026 IONIQ 5 and 2026 IONIQ 9 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.
Consequence: An electrical short in the high voltage battery system increases the risk of a fire.
Affects: Hyundai Ioniq 5 2022-2023; Hyundai Ioniq 5 2024-2025
For TWD editorial coverage of major recall campaigns, see /recalls/.
Pack family
Hyundai e-GMP 77.4 kWh (NCM) is part of the hyundai-egmp family. Related packs:
Frequently Asked Questions
What chemistry is the Hyundai e-GMP 77.4 kWh (NCM)?
The Hyundai e-GMP 77.4 kWh (NCM) uses NCM 811 chemistry. Cells are supplied by SK On (Hungary, US plant from 2025). Cell format: Pouch. Pack architecture: 180 cells in series-parallel modules, 800V architecture, liquid-cooled.
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 e-GMP 77.4 kWh (NCM) 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 e-GMP 77.4 kWh (NCM)?
Hyundai Ioniq 5 2022-2023 (Long Range); Hyundai Ioniq 5 2024-2025 (Long Range); Hyundai Ioniq 6 2023-2025 (Long Range); Kia EV6 2022-2025 (Long Range); Genesis GV60 2023-2023 (Standard / Advanced / Performance).