What Size Battery Is in a 2013 Hyundai Sonata?

The typical replacement battery size for a 2013 Hyundai Sonata is Group 124R (often listed as H5 or L2 in European-style sizing), with around 550–700 cold-cranking amps (CCA) and about 60–70 amp-hours (Ah), but exact specifications depend on engine, trim, and climate package. Below is a detailed breakdown of what that means, how to verify your specific battery size, and what to consider when replacing it.

Understanding the Battery Size for a 2013 Hyundai Sonata

In most North American markets, the 2013 Hyundai Sonata (both 2.4L and 2.0L Turbo gasoline models) commonly uses a BCI Group 124R battery. This designation refers to the physical dimensions, terminal placement, and fitment standards rather than a model-specific part number. The 124R is a compact, side-notched battery type that fits securely in the Sonata’s battery tray and aligns with the factory hold-down and cables.

Typical OEM-Equivalent Specifications

Hyundai’s original-equipment batteries can vary slightly by region and trim, but replacement batteries that match OEM specs generally fall into the following range.

• BCI Group Size: 124R (often cross-referenced to H5/L2 in DIN/EN sizing)
• Voltage: 12 volts
• Cold-Cranking Amps (CCA): Approximately 550–700 CCA, depending on brand and grade
• Reserve Capacity (RC): Typically around 90–120 minutes
• Amp-Hour Rating (Ah): Roughly 60–70 Ah for comparable European-coded batteries
• Polarity: Reversed (“R”) – positive terminal usually on the right when terminals are closest to you
• Chemistry: Conventional flooded lead-acid or AGM (Absorbent Glass Mat) in some aftermarket upgrades

These specifications capture what most owners will encounter when buying a replacement battery: a mid-size 12-volt unit with enough cranking power to reliably start the Sonata’s four-cylinder engine under a range of temperature conditions.

Variations by Engine, Trim, and Market

Not all 2013 Hyundai Sonatas are exactly the same globally. Engine type, optional equipment, and even the region where the car was sold can influence the recommended battery.

Gasoline Models (2.4L and 2.0T)

For U.S. and Canadian models with the standard 2.4L GDI engine or the 2.0L turbocharged GDI engine, the Group 124R battery is overwhelmingly the standard fitment. Aftermarket catalogs from major battery manufacturers in North America (such as Interstate, DieHard, and others) typically list 124R as the primary fit for the 2013 Sonata non-hybrid.

Hybrid Models (Sonata Hybrid)

The 2013 Sonata Hybrid uses a significantly different electrical system that includes a high-voltage traction battery for propulsion and a smaller 12-volt auxiliary battery. While the high-voltage pack is a specialized lithium-polymer system, the 12-volt battery is more conventional but can differ in size and specification from the non-hybrid model.

• 12-Volt Auxiliary Battery: May not be Group 124R; often a smaller, specific form factor depending on region
• Location: Frequently mounted in the trunk or a special compartment rather than in the engine bay
• Access and Replacement: Typically more involved than on the gasoline-only Sonata
• High-Voltage Battery: Not owner-serviceable and not interchangeable with standard automotive batteries

Hybrid owners should not assume the same 124R group size used in the non-hybrid model; checking the owner’s manual or existing battery labeling is particularly important for these vehicles.

How to Confirm the Correct Battery Size for Your Sonata

Because catalogs and online guides sometimes disagree—and because cars can be modified or serviced with non-standard parts—verifying the correct size on your own car is crucial before purchasing a replacement battery.

Check the Existing Battery’s Label

The fastest way to confirm your current battery size is to read the markings on the existing battery itself.

• Look for the Group Size: Marked as “124R,” “124/R,” or similar in North American batteries
• Note the CCA Rating: Often printed as “600 CCA,” “650 CCA,” etc.
• Identify Brand-Specific Codes: Some brands may lead with labels like H5 or L2, which usually cross-reference back to Group 124R
• Check Polarity: Ensure your replacement matches the positive/negative terminal orientation

Using the existing battery’s label is a practical check, though it assumes the previous replacement used the correct size. If something looks improvised or the battery is loosely mounted, verify with additional sources.

Use the Owner’s Manual and Manufacturer Guides

Hyundai’s documentation and professional parts catalogs offer the most authoritative guidance beyond the physical battery in your vehicle.

• Owner’s Manual: Typically includes a section listing recommended battery type or capacity
• Hyundai Dealer or Service Department: Can confirm the correct group size and recommended CCA using your VIN
• Online Parts Catalogs: Hyundai and major aftermarket suppliers often allow VIN-based lookup for precise fitment
• Technical Service Bulletins (TSBs): Occasionally update recommended parts if Hyundai changes specifications

Consulting multiple sources—manual, VIN-based lookup, and the battery currently installed—provides the best assurance that you are choosing the correct battery size and type.

Key Considerations When Choosing a Replacement Battery

Beyond just matching group size, several performance and practical factors can help you choose a battery that offers reliable starting and long life for your 2013 Sonata.

Cold-Cranking Amps (CCA)

CCA indicates how well a battery can start your vehicle in cold conditions. For a Sonata, anything at or above the original equipment rating is usually sufficient, and in colder climates, choosing a slightly higher CCA can be beneficial.

• Match or Exceed OEM: Avoid going significantly below the factory CCA rating
• Cold-Climate Use: In very cold regions, selecting a higher-CCA 124R battery can aid winter starting
• No Major Downsides to Slightly Higher CCA: As long as physical size and voltage match, higher CCA is generally safe

Staying within or above the factory-recommended CCA ensures the starter motor receives adequate power even in challenging temperatures.

Battery Technology: Flooded vs. AGM

The 2013 Sonata was originally equipped with a conventional flooded lead-acid battery, but modern battery lines also offer AGM options that fit the same group size.

• Flooded Lead-Acid: Typically less expensive and adequate for normal driving and climates
• AGM (Absorbent Glass Mat): Better vibration resistance, lower self-discharge, and often more durable for short-trip or accessory-heavy use
• Charging Compatibility: The Sonata’s charging system can generally support AGM, but always confirm with manufacturer guidance

Choosing between flooded and AGM is largely a cost-versus-longevity decision; both work as long as they match the fitment and specs for your Sonata.

Dimensions, Mounting, and Terminal Orientation

Even within the same group, small differences in case design or terminal layout can impact fitment and safety.

• Exact Group Size: Ensure the battery is clearly labeled as 124R (not 124 or another close number)
• Hold-Down Compatibility: Confirm the case includes the side or bottom ledges needed for the Sonata’s clamp or bracket
• Terminal Position: Reversed polarity is key; the cables must reach comfortably without stretching or crossing
• Height Clearance: Check the hood closes without touching the terminals or top posts

Confirming these details avoids problems like misaligned terminals, loose mounting, or contact between the hood and the battery, which could be hazardous.

Installation and Practical Tips

Installing a new battery in a 2013 Hyundai Sonata is generally straightforward, but some basic precautions will protect your vehicle’s electronics and ensure the battery operates properly.

Preparation and Safety

Before working with any car battery, it is important to protect both yourself and the vehicle’s electrical system.

• Turn the Ignition Off: Make sure the engine and all accessories are off before starting
• Wear Eye and Hand Protection: Batteries can vent corrosive gases or leak acid
• Preserve Settings: Using a memory saver to keep radio presets and some module settings can be helpful
• Disconnect Safely: Always remove the negative (–) terminal first, then positive (+)

These steps reduce the risk of sparks, accidental short circuits, and loss of stored settings when replacing the battery.

Battery Replacement Steps

With preparation complete, the physical swap is mostly mechanical, but correct order and secure mounting are essential.

1. Open the hood and locate the battery on the driver’s side of the engine bay.
2. Remove any plastic battery cover or trim pieces as needed.
3. Disconnect the negative (–) terminal, then the positive (+) terminal.
4. Loosen and remove the hold-down bracket or clamp securing the battery.
5. Lift out the old battery carefully—it is heavy and may have acid residue.
6. Clean any corrosion from the tray and terminals with a battery cleaning solution or baking soda mixture.
7. Place the new Group 124R battery in the tray, ensuring proper orientation of the terminals.
8. Reinstall and tighten the hold-down bracket so the battery cannot move.
9. Reconnect the positive (+) terminal first, then the negative (–) terminal.
10. Start the car and confirm that electrical systems are functioning correctly.

Following these steps in order helps avoid damage to the vehicle’s electronic control units and ensures the battery is secure and ready for everyday driving.

Summary

For most non-hybrid 2013 Hyundai Sonatas in North America, the correct replacement battery is a BCI Group 124R 12‑volt battery, typically in the 550–700 CCA range, with dimensions and reversed terminal orientation tailored to the Sonata’s engine bay. Hybrid versions use a different auxiliary 12‑volt battery and a separate high-voltage pack, so owners should verify specifications in the manual or via VIN lookup. Matching the correct group size, CCA, and polarity, and considering whether to upgrade to AGM, will ensure reliable starting, proper fitment, and long service life from the new battery.

What group battery is in a 2013 Hyundai Sonata?

124R group
When it comes to battery sizes, the most common one for a 2013 Hyundai Sonata is the 124R group size. These batteries have a cold crank amperage (CCA) between 700 and 875. However, there may be variations depending on your specific Sonata model.

What group size is the Hyundai Sonata battery?

DieHard Silver – Battery: 24 Group Size, 2 Year Warranty, 600 CCA, 750 CA, 110 Minute Reserve Capacity (Part No. 24FT-5)

How do I know what battery size I need?

The battery size you need depends on the device or vehicle it’s for; for a car, you need the specific BCI group size by checking the old battery or owner’s manual. For a home solar or backup system, calculate your daily energy consumption in watt-hours, divide by the system voltage (e.g., 12V, 24V, 48V), add a buffer for losses, and choose a battery with sufficient usable capacity. 
For a car

• Check the old battery: Look for the BCI (Battery Council International) Group Size on the label, such as “65” or “24F”. 
• Consult the owner’s manual: Your car’s manual will list the recommended group size and minimum cold-cranking amps (CCA). 
• Use online tools: Many websites, including automotive parts stores, have fitment finders where you can input your car’s year, make, and model. 
• Measure the physical space: If you don’t have the manual or the label, measure the battery’s length and width to ensure a proper physical fit. 

For a home solar or backup system

• Calculate daily energy consumption: Find your average daily energy usage in watt-hours (Wh) from your electric bills or a home energy monitor. 
• Determine system voltage: Decide on your system’s DC voltage (e.g., 12V, 24V, or 48V). 
• Calculate required amp-hours (Ah): Divide your total daily energy consumption (in Wh) by your system voltage to find the required amp-hours (Ah). 
• Add a safety buffer: Increase the calculated Ah by 20-30% to account for battery inefficiencies, temperature effects, and to avoid fully discharging the battery, which can shorten its lifespan. 
• Consider usable capacity: Do not confuse the total capacity with the usable capacity. Some batteries, especially lithium-ion, advertise 100% usable capacity but have hidden reserves; always check the battery’s specifications to know the actual usable capacity. 

What size is a 2013 Hyundai Sonata?

The 2013 Hyundai Sonata’s exterior dimensions are 189.8 inches long, 72.2 inches wide (without mirrors), and 57.9 inches tall, with a 110.0-inch wheelbase. Its interior offers 16.4 cubic feet of cargo space and room for five passengers. 
Exterior dimensions

• Length: 189.8 inches
• Width (without mirrors): 72.2 inches
• Height: 57.9 inches
• Wheelbase: 110.0 inches
• Front Track: 62.9 inches
• Rear Track: 62.9 inches 

Interior dimensions

• Cargo space: 16.4 cubic feet
• Front Headroom: 40.0 inches
• Front Legroom: 45.5 inches
• Front Shoulder Room: 57.9 inches
• Front Hip Room: 55.2 inches
• Rear Headroom: 37.8 inches
• Rear Legroom: 34.6 inches
• Rear Shoulder Room: 56.7 inches
• Rear Hip Room: 54.9 inches