Hyundai
Hyundai Sonata Hybrid 1.76 kWh pack (2018-2019)
Lithium-ion polymer (nickel-cobalt-manganese) cells from Hyundai Mobis (LG Chem cells) · 1.76 kWh · used in 1 model variant.
Pack reference
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.
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.
Hyundai Motor America (Hyundai) is recalling certain 2016-2018 Hyundai Sonata Plug-In Hybrid vehicles. These vehicles are equipped with a Voltage Protection Device (VPD), designed to protect the high voltage battery module, that may activate inadvertently.
Consequence: If the VPD activates while the vehicle is being operated in Electric Vehicle (EV) mode, there may be a loss of power, increasing the risk of a crash.
Filed against: Hyundai Sonata 2018-2019
For TWD editorial coverage of major recall campaigns, see /recalls/.
Pack family
Hyundai Sonata Hybrid 1.76 kWh pack (2018-2019) is part of the hyundai-sonata-hybrid family. Related packs:
Frequently Asked Questions
What chemistry is the Hyundai Sonata Hybrid 1.76 kWh pack (2018-2019)?
The Hyundai Sonata Hybrid 1.76 kWh pack (2018-2019) uses Lithium-ion polymer (nickel-cobalt-manganese) chemistry. Cells are supplied by Hyundai Mobis (LG Chem cells). Cell format has not been disclosed. Pack architecture: 270-volt pack under the trunk floor.
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 1.76 kWh pack (2018-2019) 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 1.76 kWh pack (2018-2019)?
Hyundai Sonata 2018-2019 (Sonata Hybrid (1.76 kWh)).