What Size Battery Does a Hyundai Santa Fe Take?

A Hyundai Santa Fe typically uses a Group 124R or Group 48 (H6) 12‑volt battery for most gasoline models from the 2010s onward, but the exact size depends on the model year, engine type, and whether it is a hybrid or plug‑in hybrid. To choose correctly, you need to match the battery group size, cold‑cranking amps (CCA), and terminal layout specified in your owner’s manual or under‑hood label.

Why Battery Size Varies by Model Year and Powertrain

The question “What size battery does a Hyundai Santa Fe take?” is more complicated than it appears, because Hyundai has changed platforms, engines, and electrification options several times. As a result, different generations and trims of the Santa Fe use different battery group sizes and specifications. Understanding which generation and powertrain you have is the first step toward getting the right replacement battery.

Typical Battery Sizes by Generation (U.S. & Canada Focus)

This section outlines the most common battery group sizes used in Hyundai Santa Fe models sold in North America. Exact specifications can vary slightly by trim, climate package, and market, so always cross‑check against your owner’s manual or an under‑hood label.

• 2024–2025 Hyundai Santa Fe (new boxy-gen, MX5 platform)

  Gasoline models commonly use a Group 48 (H6) AGM or flooded lead‑acid battery, 12 V, typically around 70–80 Ah with 700+ CCA. Hybrid and plug‑in hybrid variants generally use a separate 12‑volt auxiliary battery (often also Group 48 or similar compact AGM) plus a high‑voltage traction battery.

• 2019–2023 Hyundai Santa Fe / Santa Fe XL (TM)

  Most 2.0T and 2.4L gasoline models: Group 48 (H6) or sometimes Group 124R, depending on trim and supplier.

  Diesel markets (outside North America) may use larger capacity variants within similar physical sizes.

• 2013–2018 Hyundai Santa Fe (DM / NC)

  Commonly uses Group 124R for many 2.4L and 3.3L gasoline models in North America. Some trims and markets accept Group 48 (H6) as an equivalent fit.

• 2007–2012 Hyundai Santa Fe (CM)

  Typical fitment is Group 124R (12 V, around 550–650 CCA for base trims). Replacement catalogs may offer upgraded options with higher CCA in the same group size.

• 2001–2006 Hyundai Santa Fe (first generation, SM)

  Often uses a Group 26R or sometimes Group 124R in North American fitment guides, depending on engine and market. These earlier models allow a bit more variation, so catalog lookup is important.

These group sizes describe the physical footprint, terminal orientation, and general capacity range of the batteries most frequently specified for the Santa Fe. While aftermarket catalogs sometimes offer alternative fits, sticking to the original group size minimizes installation issues.

Hybrid and Plug‑In Hybrid Santa Fe Battery Needs

Recent Santa Fe Hybrid and Plug‑In Hybrid (PHEV) models have two very different batteries: a high‑voltage traction battery for propulsion and a conventional 12‑volt battery for accessories and control electronics. When drivers ask about “battery size,” they usually mean the 12‑volt unit, but electrified versions also raise questions about the high‑voltage pack.

12‑Volt Battery in Santa Fe Hybrid and PHEV

In hybrids and PHEVs, the 12‑volt battery is smaller than in conventional models but still critical for starting control modules, powering lights, locking systems, and running accessories when the high‑voltage system is off. Hyundai increasingly uses AGM (Absorbent Glass Mat) technology for durability and compatibility with regenerative and start‑stop systems.

Here are the key points for the 12‑volt batteries in hybrid and PHEV Santa Fe models:

• Battery type: Usually AGM rather than standard flooded lead‑acid, chosen for better deep‑cycle tolerance and resistance to vibration.
• Group size: Frequently Group 48 (H6) or a closely related compact size, though exact dimensions can vary by model year and region.
• Location: Some models mount the 12‑volt battery under the hood; others may integrate it in the rear cargo area or under seats for packaging and crash safety reasons.

Because hybrids and PHEVs are more sensitive to incorrect battery type and voltage stability, owners should adhere closely to Hyundai’s specifications and avoid mixing standard flooded batteries where AGM is specified.

High‑Voltage Traction Battery (kWh Size)

Beyond the 12‑volt system, hybrid and PHEV Santa Fe models also use lithium‑ion high‑voltage packs. Although these are not owner‑serviceable in the same way, drivers sometimes want to know their capacity.

The following list summarizes recent traction battery capacities found in Santa Fe hybrids and PHEVs:

• Santa Fe Hybrid (around 2021–2024): Typically uses a ~1.5–1.6 kWh lithium‑ion polymer pack, designed primarily for fuel‑saving assist, regenerative braking storage, and limited electric‑only low‑speed operation.
• Santa Fe Plug‑In Hybrid (PHEV): Commonly equipped with a ~13–14 kWh lithium‑ion battery pack, providing around 30–35 miles (roughly 48–56 km) of electric‑only driving under typical test cycles, depending on model year and regional certification.
• Battery management: Both systems rely on sophisticated battery‑management electronics. Replacement or repair is typically dealer‑level work and covered under separate high‑voltage battery warranties in many markets.

While you cannot swap or “upsize” these high‑voltage packs as easily as a 12‑volt battery, understanding their capacities helps frame your expectations for electric‑only range and long‑term performance.

How to Confirm the Correct Battery for Your Santa Fe

Even with typical group sizes in mind, the most reliable method is to verify your exact vehicle specification. Build variations, cold‑weather packages, and regional differences can alter the recommended battery size and type.

The following methods are the most dependable ways to confirm the correct battery for your Santa Fe:

1. Check the owner’s manual: Look under the “Specifications” or “Battery” section for group size, CCA rating, and whether an AGM battery is required.
2. Inspect the existing battery: Most batteries have the group size (e.g., 124R, 48/H6) printed on a top or side label, along with CCA and reserve capacity ratings.
3. Look under the hood for labels: Some Santa Fe models have a decal near the radiator support or on the underside of the hood listing the correct OEM battery specification.
4. Use a trusted parts catalog: Online or in‑store automotive parts catalogs let you enter year, engine, and trim to pull up the correct battery groups and compatible alternates.
5. Contact a Hyundai dealer: Provide your VIN, and the parts department can give you the exact OEM specification for both 12‑volt and (where applicable) auxiliary batteries.

By cross‑checking at least two of these sources, you greatly reduce the risk of buying a battery that physically fits but fails to meet Hyundai’s electrical or durability requirements.

Key Specs Beyond Physical Size

Choosing the right battery for a Hyundai Santa Fe involves more than just matching the group size. Electrical performance and construction type are important to ensure reliable starts and long service life, especially in extreme climates or in vehicles with high electrical loads.

When comparing candidate batteries for your Santa Fe, consider these technical specifications:

• Cold‑Cranking Amps (CCA): Indicates how well the battery can start the engine in cold weather. For most Santa Fe models, ratings typically fall in the 550–800 CCA range; colder climates benefit from the higher end of that spectrum.
• Reserve Capacity (RC): Measures how long the battery can power essential systems if the alternator fails. Higher RC is generally better, especially if you use accessories with the engine off.
• AGM vs. Flooded: Start‑stop and hybrid systems often require AGM batteries, which tolerate deeper cycling and higher electrical loads better than standard flooded lead‑acid.
• Terminal layout and polarity: The Santa Fe commonly uses “R” (reverse) orientation group sizes such as 124R, meaning the positive terminal is on the opposite side compared with the standard version. Getting this wrong can make cable connection difficult or unsafe.
• Height and hold‑down compatibility: If a battery is too tall or lacks the correct lip for the clamp, it may not secure properly, especially critical in vehicles with off‑road or rough‑road use.

Matching these specifications to Hyundai’s recommendations ensures that your Santa Fe’s electrical system performs as intended and that the new battery integrates cleanly into the existing hardware.

Practical Buying Advice for Santa Fe Owners

When it’s time to replace the battery, Santa Fe owners face a wide spread of brands, price points, and technologies. A methodical approach helps balance cost, reliability, and warranty coverage.

Here are practical steps to guide your purchase decision:

1. Start with the correct group size: Confirm whether your Santa Fe calls for Group 124R, 48 (H6), 26R, or another size, based on year and engine.
2. Match or exceed OEM CCA: Do not go below the factory CCA rating. Slightly higher CCA is generally safe and can improve cold‑weather performance.
3. Choose AGM where specified: If your manual or under‑hood label calls for AGM (especially on hybrids and start‑stop models), do not substitute a standard flooded battery.
4. Consider your climate: In very cold regions, prioritize higher CCA; in very hot regions, seek batteries rated for high‑temperature durability and consider shorter replacement intervals.
5. Check warranty and brand support: Look for at least a three‑year free‑replacement warranty from a reputable supplier with convenient local or national support.

Following these steps will help you secure a battery that not only fits the Santa Fe physically but also supports consistent starting, accessory use, and long‑term reliability.

Summary

Most modern Hyundai Santa Fe gasoline models use a Group 124R or Group 48 (H6) 12‑volt battery, while hybrids and plug‑in hybrids add a high‑voltage lithium‑ion traction pack and often require an AGM‑type 12‑volt auxiliary battery. The exact specification depends on model year, engine, trim, and market. To be certain, owners should consult the owner’s manual, inspect the existing battery label, or confirm by VIN with a Hyundai dealer or trusted parts catalog. Matching group size, CCA, and battery type to Hyundai’s requirements is the safest way to ensure reliable performance from any Santa Fe.