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What kind of battery does an Acura RDX need?

In brief, the Acura RDX generally requires a 12-volt automotive battery for the standard gasoline models, with the hybrid e:HEV variant adding a high-voltage battery as part of its hybrid system. Always verify the exact specification for your model year and trim in the owner's manual or with a dealer.


Understanding the battery setup across RDX models


The RDX lineup includes both gasoline-only models and a hybrid variant. The 12-volt battery powers starting, accessories, and electronics, while the hybrid version combines a high-voltage traction battery with a conventional 12-volt battery for auxiliary systems.


Gasoline-only RDX (non-hybrid)


The gasoline-only RDX uses a 12-volt automotive battery located in the engine bay. If the model includes Idle Start-Stop (ISG), the 12-volt battery is commonly an absorbed glass mat (AGM) type to handle frequent engine restarts and higher electrical load.


Replacement considerations for this variant



  • 12-volt battery type: lead-acid; AGM is often recommended if the vehicle has ISG, though some trims may use conventional lead-acid.

  • Group size and capacity vary by year and trim; verify the exact specification for your vehicle.

  • Cold-cranking amps (CCA) should meet or exceed the OEM rating to ensure reliable starting in cold weather.


Conclusion: Use the correct 12-volt battery type and size specified for your model year, and consult a dealer or battery chart if in doubt.


RDX e:HEV (hybrid)


The RDX e:HEV adds a high-voltage traction battery as part of its hybrid propulsion system. The 12-volt auxiliary battery remains essential for electronics and system controls, but the high-voltage pack is separate and not user-serviceable.


Notes for hybrid owner



  • The high-voltage pack is typically a lithium-ion-based module used for hybrid propulsion; it requires specialized service and handling.

  • The 12-volt battery in the hybrid model is still used for starting and electronics, and is often configured to support the vehicle’s hybrid systems.


Conclusion: Do not attempt to service or replace the high-voltage battery yourself. RDX e:HEV maintenance should be performed by a trained technician at an authorized service center.


Choosing and replacing an Acura RDX battery: practical steps


When preparing to replace the battery, follow these guidelines to ensure compatibility and reliability.



  1. Identify the exact model year and trim (gasoline vs hybrid) to determine the correct battery type.

  2. Consult the owner's manual or an Acura dealer for the precise battery specification (type, group size, and rating).

  3. Choose an OEM-equivalent 12-volt battery or a reputable aftermarket battery that matches the required type (AGM if ISG is installed for gasoline models; standard lead-acid otherwise).

  4. Have the battery installed by a qualified technician if you are unsure about the ISG system or other electrical components.


Conclusion: Correct specification and proper installation are essential for reliability and warranty coverage.


Maintenance and common issues


Regular maintenance can extend battery life and prevent unexpected outages. For both gasoline and hybrid models, follow these guidelines and watch for warning signs of failure.



  • Keep terminals clean and free of corrosion; inspect cables for wear and secure connections.

  • Replace the 12-volt battery every 3–5 years, or sooner if you notice slow cranking, dim interior lights, or warning indicators.

  • For hybrids, rely on dealer service for high-voltage system checks; do not attempt DIY repairs on the high-voltage pack.


Conclusion: Proactive maintenance helps prevent sudden battery failures and preserves vehicle reliability, especially in more electronics-heavy trims and hybrids.


Summary


Most Acura RDX models use a 12-volt lead-acid battery for normal operation, with many gasoline trims benefiting from an AGM type when Idle Start-Stop is present. The RDX e:HEV hybrid adds a high-voltage traction battery as part of its hybrid system, while the 12-volt battery continues to power auxiliary systems. Always verify model-year specifics with the owner's manual or a dealer before purchasing or replacing a battery.

What size battery is in the 2013 Acura RDX?


The battery size for a 2013 Acura RDX is BCI Group Size 24F. The recommended Cold Cranking Amps (CCA) is typically around 750A, though some batteries may have slightly different ratings. 

  • BCI Group Size: 24F
  • Recommended CCA: Around 750A



How much does it cost to replace the battery in a Acura RDX?


The cost to replace an Acura RDX battery ranges from approximately $150 to over $1,300, depending on whether you buy the battery yourself or have it installed by a professional. A DIY battery can cost between $100 and $250 for the part, while a professional installation at a dealership can be much higher, potentially reaching over $1,300 for some models. 

Service Estimated Cost
DIY Replacement $100–$250 (part only)
This is the cost of the battery itself if you purchase it from an auto parts store and install it yourself.
Professional Installation $150–$400 (for some models)
This includes the battery part and labor, with many independent mechanics falling into this range.
Dealership $292–$1,361+ (depending on model and year)
This is the highest estimate due to the use of official parts and higher labor rates.
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Factors that influence the cost
  • DIY vs. Professional Installation: Installing the battery yourself is the cheapest option, but may not be suitable for all RDX models or if you're not comfortable with the task. 
  • Dealership vs. Independent Mechanic: Dealerships are generally more expensive because they use OEM parts and have specialized technicians, but independent shops are often a more affordable alternative. 
  • Battery Type: The type of battery (e.g., standard lead-acid vs. AGM) and brand will affect the price. 
  • Labor Costs: Labor costs can add $50–$150 to the total, and may be higher at a dealership. Some newer models may require more complex labor to access the battery. 



What kind of battery does a 2015 Acura RDX take?


Duralast Gold Group Size 24F Battery 24F-DLG.



What kind of battery does a 2017 Acura RDX take?


Duralast Platinum Group Size 24F AGM Battery 24F-AGM.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.