Hyundai Motor Group
Hyundai e-GMP 99.8 kWh (EV9)
NCM 811 cells from SK On (Hungary, US plant ramping) · 99.8 kWh total (96 kWh usable) · used in 1 model variant.
Hyundai e-GMP 99.8 kWh (EV9)
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.
Kia America, Inc. (Kia) is recalling certain 2025 EV9 vehicles. The rear gear drive unit (GDU) motor shaft may have been improperly welded and become damaged, causing a loss of drive power.
Consequence: A loss of drive power increases the risk of a crash.
Affects: Kia EV9 2024-2025
Kia America, Inc. (Kia) is recalling certain 2023 Niro EV and 2024 EV9 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: Kia EV9 2024-2025
For TWD editorial coverage of major recall campaigns, see /recalls/.
Pack family
Hyundai e-GMP 99.8 kWh (EV9) is part of the hyundai-egmp family. Related packs:
Frequently Asked Questions
What chemistry is the Hyundai e-GMP 99.8 kWh (EV9)?
The Hyundai e-GMP 99.8 kWh (EV9) uses NCM 811 chemistry. Cells are supplied by SK On (Hungary, US plant ramping). Cell format: Pouch. Pack architecture: 180+ cells in extended 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 99.8 kWh (EV9) 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 99.8 kWh (EV9)?
Kia EV9 2024-2025 (Light / Wind / Land / GT-Line (single pack tier)).