--- title: "2020-2025 Hyundai Sonata Battery Size and CCA" description: "The 2020-2025 Hyundai Sonata uses a BCI group 48 (H6) AGM battery. AGM is required, not optional. Fitment, replacement notes, and what to check before you buy." url: "https://whichcarparts.com/cars/hyundai/sonata/2020-2025/battery" updated: "2026-08-21" --- # 2020-2025 Hyundai Sonata Battery Size (BCI Group and CCA) The 2020-2025 Hyundai Sonata uses a BCI group 48 (H6) AGM battery. AGM is required, not optional. Fitment, replacement notes, and what to check before you buy. **Quick answer**: The 2020-2025 Hyundai Sonata uses a Group 48 (H6) AGM battery, AGM required. ## 2020-2025 Hyundai Sonata battery specifications (Check your manual) | Spec | Value | | --- | --- | | BCI group size | 48 (H6) AGM | | Battery type | AGM | | AGM required | Yes | | Location | Engine bay, driver side | Note: Start-stop is standard across the DN8 lineup, requiring an AGM battery; Group 48 (H6) is the most commonly reported OEM-equivalent fit. Confirm against your VIN before ordering. ## 1.6L Turbo Hybrid (Smartstream G1.6 T-GDI + electric motor) battery (Check your manual) | Spec | Value | | --- | --- | | BCI group size | Compact 12V AGM (auxiliary only), exact BCI group not independently confirmed | | Battery type | AGM | | Location | Trunk, under the cargo floor | Note: 12V accessory battery only; the lithium-ion-polymer traction pack is separate, under the rear seat. ## Which Hyundai Sonata model years does this cover? These battery specifications apply to every Hyundai Sonata built from 2020 through 2025, the DN8 (8th generation), mid-size sedan. Nothing in this specification changes between those model years. - [2020 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2020) - [2021 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2021) - [2022 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2022) - [2023 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2023) - [2024 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2024) - [2025 Sonata](https://whichcarparts.com/cars/hyundai/sonata/2025) ## What changed during the 2020-2025 Hyundai Sonata | Years | What changed | | --- | --- | | 2020 | Generation launch; 2.5L and 1.6T gas engines, plus Hybrid, at launch | | 2021 | N Line trim introduced with the 2.5T Smartstream engine; 1.6T dropped from most trims | | 2022 | N Line Night Edition appearance package added; panoramic sunroof newly available | | 2023 | SEL trim gains a larger touchscreen infotainment system with navigation; Highway Driving Assist added to the driver-assist suite | | 2024 | Facelift with revised front/rear styling and updated interior tech | ## 2020-2025 Hyundai Sonata battery: common questions ### What size battery does a 2020-2025 Hyundai Sonata take? BCI group 48 (H6) AGM. Group size is a physical dimension and terminal-position standard, so a battery from a different group may not clamp down or may put the terminals on the wrong side. ### Does the 2020-2025 Hyundai Sonata need an AGM battery? Yes. This vehicle requires AGM, not flooded. A flooded battery in a start-stop system is cycled far harder than it is designed for and fails early. ### Where is the battery on a 2020-2025 Hyundai Sonata? Engine bay, driver side. ### Does a 2020-2025 Hyundai Sonata need the battery registered after replacement? Start-stop is standard across the DN8 lineup, requiring an AGM battery; Group 48 (H6) is the most commonly reported OEM-equivalent fit. Confirm against your VIN before ordering. ## Sources - [Wikipedia, Hyundai Smartstream engine family (G1.6T, G1.6T Hybrid, displacement/output data)](https://en.wikipedia.org/wiki/Hyundai_Smartstream_engine) - [AMSoil lookup, 2022 Sonata 2.5L oil viscosity/capacity](https://www.amsoil.com/lookup/auto-and-light-truck/2022/hyundai/sonata/2-5l-4-cyl-engine-code-a-a/) - [Costa Oils, 2023 Sonata 2.5L Turbo (N Line) oil guide](https://costaoils.com/2023-hyundai-sonata-2-5l-turbo-oil-change-guide-2/) - [Hyundai Forums, N Line owner's manual 0W-30 vs. 0W-20 cap discussion](https://www.hyundai-forums.com/threads/0w-20-oil-only-one-listed.671641/) - [Goodyear, 2024 Sonata factory tire fitments by trim](https://www.goodyear.com/en-us/vehicles/Hyundai/Sonata/2024) - [Headquarter Hyundai, 2020 Sonata fuel tank capacity and EPA mpg](https://www.headquarterhyundai.com/research/2020-hyundai-sonata-mpg/) - [US News, 2021 Sonata Limited 1.6T engine specs](https://cars.usnews.com/cars-trucks/hyundai/sonata/2021/specs/sonata-limited-1-6t-416162) - [Go-Parts, 2021-2024 Hyundai/Kia 2.5L Smartstream (G4KN) oil dilution/piston-ring notes](https://www.go-parts.com/garage/engine-complete-assembly-kia-sorento-hyundai-santa-fe-hyundai-sonata-2021-2024) ## Other Hyundai Sonata generations - [2015-2019 Hyundai Sonata battery](https://whichcarparts.com/cars/hyundai/sonata/2015-2019/battery) - [2011-2014 Hyundai Sonata battery](https://whichcarparts.com/cars/hyundai/sonata/2011-2014/battery) Or [compare all generations](https://whichcarparts.com/cars/hyundai/sonata/battery). ## More for the 2020-2025 Hyundai Sonata - [Oil & filter](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/oil) - [Tires & wheels](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/tires) - [Wiper blades](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/wipers) - [Air & cabin filters](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/filters) - [Bulbs](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/bulbs) - [Brakes](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/brakes) - [Fluids](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/fluids) - [Service schedule](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/service-schedule) - [Problems & reliability](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/common-problems) - [Oil light reset](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/oil-reset) - [Key fob battery](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/key-fob-battery) - [Specs](https://whichcarparts.com/cars/hyundai/sonata/2020-2025/specs) Specifications vary with engine option, production date, and market.