2021 International MV Battery Size & Group

Quick answer:

• BCI Group Size: Group 31 (requires two batteries in parallel)
• CCA Rating: 925-1000 CCA per battery (1850-2000 total system CCA)
• Reserve Capacity: 180-200 minutes per battery
• AGM vs. Flooded: Can use either, but AGM offers superior vibration resistance and deeper cycling capability, which is beneficial for commercial applications.
• Terminal Layout: Typically SAE posts, top-terminal.
• Physical Dimensions (Group 31): Approximately 13" L x 6.8" W x 9.4" H per battery.
• Dual-Battery Setup: Yes, the 2021 International MV utilizes a dual-battery setup wired in parallel to provide the necessary cranking power and reserve capacity for its diesel engine and extensive electrical demands.

Replacement battery options

When it comes to replacing the batteries in your 2021 International MV, quality and reliability are paramount. Here are some popular options from trusted brands:

• Interstate: Interstate offers several heavy-duty Group 31 batteries suitable for the International MV. Look for their MTZ or MTD series for superior performance and longevity. Specific part numbers may vary by dealer and region, but common options are in the 925-1000 CCA range.
• Optima: Optima's YellowTop (deep cycle) or RedTop (starting) Group 31 batteries are excellent choices, with the YellowTop being particularly suited for vehicles with high electrical loads or auxiliary equipment due to its deep-cycling capabilities. Optima batteries are known for their vibration resistance and sealed, spill-proof design.
• DieHard: DieHard offers robust Group 31 batteries designed for heavy-duty applications. Their Platinum series is often a good match, offering strong CCA and reserve capacity. Check with retailers for specific product availability and part numbers.
• Odyssey: Odyssey Extreme Series Group 31 batteries are premium options known for their exceptional power, deep-cycling capabilities, and extended lifespan. They are a significant upgrade for demanding commercial use.
• ACDelco: ACDelco offers their Professional series heavy-duty Group 31 batteries. These are a reliable and cost-effective choice for many commercial operations.

AGM vs. flooded — which does this vehicle need?

For the 2021 International MV, you have the option of using either Absorbent Glass Mat (AGM) or traditional flooded lead-acid batteries. Both will work, but AGM generally offers several advantages that make it a superior choice for commercial vehicles like the MV:

• Vibration Resistance: Commercial trucks experience significant vibration. AGM batteries are much more resistant to vibration damage than flooded batteries, leading to a longer lifespan.
• Deep Cycling: If your truck has auxiliary equipment, sleeper cabs with electronics, or regularly experiences parasitic drains, AGM batteries are better suited for deep cycling (discharging deeply and being recharged repeatedly) without significant loss of capacity.
• Maintenance-Free: AGM batteries are sealed and maintenance-free, meaning no need to check electrolyte levels or add distilled water.
• Spill-Proof: Their sealed design also makes them spill-proof, which can be an advantage in certain mounting situations or in the event of an accident.
• Faster Recharging: AGM batteries often accept a charge more efficiently and recharge faster than flooded batteries.

While AGM batteries typically have a higher upfront cost, their extended lifespan and performance benefits often outweigh the initial investment for a commercial vehicle like the International MV.

Post-installation relearn / reset procedure

After disconnecting and replacing the batteries in your 2021 International MV, a