Reliability

Hyundai

Hyundai Sonata Hybrid pack (2020-2025)

Lithium-ion polymer (nickel-cobalt-manganese) cells from Hyundai Mobis · 1.62 kWh · used in 2 model variants.

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Pack reference

Lithium-ion polymer (nickel-cobalt-manganese) · Hyundai Mobis · 270-volt pack, 72 cells in nine modules
About the pack
Capacity
1.62 kWh
as published
Service life
10 yr
100k mi typical
Warranty floor
—
see OEM warranty book

Pack overview

ChemistryLithium-ion polymer (nickel-cobalt-manganese)
Cell supplierHyundai Mobis
Cell formatNot published
Voltage (nominal)270 V
CoolingAir (cabin-fed)
Architecture270-volt pack, 72 cells in nine modules
Warranty 10 yr / 100k mi

Known issues

Low
Hyundai's spec sheets for 2021 through 2025 list 1.62 kWh. EPA's declaration for the same years is 270 volts and 5.5 amp-hours, which works out to about 1.49 kWh.
Low
Hyundai covers the battery for 10 years or 100,000 miles. The lifetime battery coverage for original owners ended with the 2019 model year.
Low
The Limited's solar roof charges the 12-volt and hybrid batteries. Hyundai rates it at 205 watts and says it can add up to 700 miles of driving a year depending on location.
Low
Hyundai's EPA certification filing describes nine modules of eight cells, 72 in all, cooled by cabin air.

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.

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

Pack family

Hyundai Sonata Hybrid pack (2020-2025) is part of the hyundai-sonata-hybrid family. Related packs:

Frequently Asked Questions

What chemistry is the Hyundai Sonata Hybrid pack (2020-2025)?

The Hyundai Sonata Hybrid pack (2020-2025) uses Lithium-ion polymer (nickel-cobalt-manganese) chemistry. Cells are supplied by Hyundai Mobis. Cell format has not been disclosed. Pack architecture: 270-volt pack, 72 cells in nine modules.

What is the warranty on this pack?

10 years or 100,000 miles. 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 Sonata Hybrid pack (2020-2025) battery warranty runs 10 years / 100,000 miles, 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 Sonata Hybrid pack (2020-2025)?

Hyundai Sonata 2020-2024 (Sonata Hybrid only); Hyundai Sonata 2025-2025 (Sonata Hybrid only).

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