The Santa Fe uses a standard 12-volt lead-acid car battery, with the exact group size varying by engine and trim. Commonly, the battery is either Group Size 65 or Group Size 75.
In 2015, gasoline-powered Santa Fe models typically relied on a conventional flooded lead-acid battery rather than an AGM battery. The precise size, CCA (cold-cranking amps), and RC (reserve capacity) depend on your specific configuration and market. To be certain, check the under-hood battery label, consult the owner's manual, or use a VIN-based parts lookup to identify the exact specification.
Battery type and capacity
For most 2015 Santa Fe gasoline models, the battery is a 12-volt lead-acid unit and is usually a conventional flooded battery. The capacity and group size depend on the engine option and trim level.
Before purchasing a replacement, confirm the correct group size and rating for your vehicle by inspecting the current battery label or using a VIN-based parts lookup.
To identify the exact size and rating for your car, you can use these steps:
- Check the current battery label under the hood for the Group Size (for example "65" or "75").
- Refer to the owner's manual or the Hyundai parts catalog for your VIN.
- Visit a parts or service shop and provide year, make, model, and engine to ensure you get the correct size and CCA.
- If you plan an upgrade, match or exceed the CCA and RC of the original battery and ensure the fit in the tray.
With the correct group size and rating confirmed, you can replace or upgrade safely without compatibility issues.
Common group sizes for the 2015 Santa Fe
While exact size depends on trim and market, the two most common group sizes for the 2015 Santa Fe gasoline models are 65 and 75. The typical cold-cranking amps range from roughly 550 to 800 A depending on the size.
- Group Size 65: a common choice for mid-size SUVs; typical CCA around 550–750 A.
- Group Size 75: a larger capacity battery used on higher-load configurations; typical CCA around 700–800 A.
Note that some markets or trims may use a slightly different group size. Always verify with the label or VIN-based lookup.
Maintenance and replacement tips
Follow standard safety precautions and Hyundai’s guidelines when replacing the battery. Steps include disconnecting the negative terminal first, ensuring the engine is off, and then removing the old battery and installing the new one with correct terminal orientation and secure clamps.
- Wear eye protection and gloves; avoid metal jewelry that could cause shorts.
- Clean corrosion from terminals with a baking soda solution and a wire brush.
- Apply terminal protectant spray or petroleum jelly to prevent corrosion.
- Recycle the old battery at an approved facility.
After replacement, test the charging system to ensure the alternator is functioning and the battery is holding a proper charge. If the vehicle stores memory, you may need to reset radios and other electronics.
Summary
The 2015 Hyundai Santa Fe generally uses a conventional 12-volt lead-acid battery, with common group sizes of 65 or 75 depending on engine and trim. Verify the exact size by checking the under-hood label, the owner's manual, or a VIN-based parts lookup. Replace or upgrade safely by following standard procedures and recycling the old battery.


