2024 Ram 2500 Battery Size & Group

Quick answer:

• BCI Group Size: Varies. 6.4L HEMI uses a Group 48. 6.7L Cummins Diesel uses two Group 65 batteries.
• CCA Rating: 6.4L HEMI: Typically 730-800 CCA. 6.7L Cummins Diesel: Each battery will be rated around 750-850 CCA.
• Reserve Capacity: 6.4L HEMI: Around 140-160 minutes. 6.7L Cummins Diesel: Each battery will be rated around 130-160 minutes.
• AGM vs Flooded: Both engine types can generally use either AGM or flooded, though AGM is often recommended for its durability and performance benefits, especially in demanding applications or cold climates. Some advanced charging systems may be optimized for AGM, consult your owner's manual.
• Terminal Layout: Top post.
• Physical Dimensions: Varies by group size. Group 48: Approximately 12.06" L x 6.88" W x 7.50" H. Group 65: Approximately 12.06" L x 7.50" W x 7.31" H.
• Dual-Battery Setup: Standard for the 6.7L Cummins Diesel engine.

Replacement battery options

Finding the right replacement battery for your 2024 Ram 2500 is crucial for reliable starting and powering all your truck's electrical accessories. Here are some popular options by manufacturer. Always verify the BCI group size for your specific engine before purchasing.

For 6.4L HEMI (Group 48):

• Interstate: MTP-48/H6 (often referred to as H6 or Group 48)
• Optima: YellowTop H6 (8073-167)
• DieHard: Platinum AGM Group 48
• Odyssey: ODP-AGM48 H6 L3 (Performance Series 48-720)
• ACDelco: 48AGM Professional AGM

For 6.7L Cummins Diesel (Dual Group 65):

• Interstate: MTP-65 (requires two per truck)
• Optima: RedTop 65 (8004-001) (requires two per truck)
• DieHard: Platinum AGM Group 65 (requires two per truck)
• Odyssey: 65-PC1750 (Extreme Series) (requires two per truck)
• ACDelco: 65AGM Professional AGM (requires two per truck)

AGM vs flooded — which does this vehicle need?

For the 2024 Ram 2500, both AGM (Absorbent Glass Mat) and traditional flooded lead-acid batteries are generally compatible, but there are important distinctions to consider. While your truck likely came with a robust flooded battery, an AGM often provides superior performance and longevity, especially in heavy-duty applications or extreme climates.

AGM advantages:

• Durability: More resistant to vibration, which is beneficial for heavy-duty trucks.
• Deep Cycling: Better suited for vehicles with high electrical demands or those that frequently drain the battery (e.g., winches, auxiliary lighting, extensive idling).
• Slower Self-Discharge: Holds a charge longer when not in use.
• Leak-Proof: Sealed design eliminates acid spills and maintenance.
• Better Cold Weather Performance: Often maintains more cranking power in very cold temperatures.

Flooded advantages:

• Cost-Effective: Generally less expensive upfront.
• Tried and True: A proven technology that has been reliable for decades.

While your 2024 Ram 2500's charging system is designed to handle both types, an AGM battery is often a worthwhile upgrade due to the demanding nature of a heavy-duty truck. Always confirm any specific battery requirements or recommendations in your owner's manual.

Post-installation relearn / reset procedure

After replacing the battery in your 2024 Ram 2500, especially if the old battery was completely dead or disconnected for an extended period, you might experience some minor anomalies. The truck's various computer modules, including the Powertrain Control Module (PCM) and Body Control Module (BCM), have