2025 Isuzu NQR Battery Size & Group

Quick answer

• BCI Group Size: Group 31 (Dual Battery Setup)
• CCA Rating: 925 CCA or higher per battery
• Reserve Capacity: 180 minutes or higher per battery
• AGM vs. Flooded: Flooded (lead-acid) starting batteries are standard, but AGM is an excellent upgrade for improved durability and performance.
• Terminal Layout: Typically top post, stud-type terminals.
• Physical Dimensions (Group 31): Approximately 13" L x 6.8" W x 9.4" H
• Dual-Battery Setup: Yes, the 2025 Isuzu NQR utilizes a dual-battery (in a series-parallel configuration for 24V starting system) setup necessary for its diesel engine.

Replacement battery options

The 2025 Isuzu NQR, being a commercial diesel truck, requires robust Group 31 batteries. While specific part numbers can vary by retailer and battery line, here are common options from reputable brands. Always double-check fitment with your dealer or parts supplier.

• Interstate: Commercial line, often listed as Group 31 with specific CCA ratings.
• Optima: Optima offers YellowTop or RedTop Group 31 batteries, providing excellent vibration resistance and cycling capabilities. (e.g., DSL1200 or 31T if available in Group 31)
• DieHard: Heavy-duty Group 31 batteries, often found under their commercial or Platinum lines.
• Odyssey: PC2150 (Group 31, often with higher CCA and RC than standard flooded batteries).
• ACDelco: Commercial series Group 31.

AGM vs. flooded — which does this vehicle need?

The 2025 Isuzu NQR, like most commercial diesel trucks, comes standard with robust flooded lead-acid batteries. These are designed to provide the high cranking amperes needed to start large diesel engines, especially in a dual-battery configuration. Flooded batteries are generally more affordable and have been the industry standard for decades.

However, upgrading to Absorbent Glass Mat (AGM) batteries offers significant advantages for a commercial vehicle like the NQR:

• Durability: AGM batteries are more resistant to vibration, a common cause of failure in commercial vehicle batteries due to constant road shock.
• Maintenance-Free: They are sealed and require no water addition.
• Slower Self-Discharge: They hold a charge longer when the vehicle is not in use.
• Improved Cycling: Better suited for vehicles with frequent starts and stops or those with auxiliary electronics that draw power when the engine is off.

While not strictly