2024 Isuzu NQR Battery Size & Group

Quick answer

• BCI Group Size: Group 31 (Dual battery setup)
• CCA Rating: 900-1000 CCA per battery (minimum)
• Reserve Capacity: 170-200 minutes per battery
• AGM vs. Flooded: Flooded lead-acid is standard, AGM is an upgrade option for improved longevity and performance.
• Terminal Layout: Typically top post, stud terminals.
• Physical Dimensions (approximate per battery): 13" L x 6.8" W x 9.4" H
• Dual-Battery Setup: Yes, the Isuzu NQR utilizes a dual-battery setup (2x Group 31).

Replacement battery options

The 2024 Isuzu NQR requires two Group 31 batteries. Here are some popular replacement options, focusing on high CCA and robust construction suitable for commercial truck applications:

• Interstate: Look for their Workaholic or MT series Group 31 batteries. Specific part numbers may vary by region but will be designated as a Group 31 with 900-1000+ CCA.
• Optima: While Optima is known for AGM batteries, their Group 31 options are more geared towards heavy-duty use. The Optima D31A (YellowTop) or D31T (YellowTop with side posts, confirm fitment) would be suitable for an AGM upgrade.
• DieHard: DieHard Commercial (Platinum or Gold series) Group 31 batteries offer reliable performance for trucks.
• Odyssey: Odyssey PC2150 (31-2150) is a premium AGM Group 31 battery offering exceptional CCA and reserve capacity, a top-tier upgrade.
• ACDelco: ACDelco Commercial Group 31 batteries are also a solid choice.

Always verify the exact part number and specifications with your retailer, ensuring it meets or exceeds the OEM requirements for CCA and reserve capacity.

AGM vs. flooded — which does this vehicle need?

The 2024 Isuzu NQR typically comes with traditional flooded lead-acid batteries from the factory. These are perfectly adequate for the vehicle's needs, offering good performance and a lower upfront cost.

However, upgrading to Absorbent Glass Mat (AGM) batteries is often a worthwhile investment for commercial vehicles like the NQR. AGM batteries offer several advantages:

• Durability: They are more resistant to vibration, which is common in commercial trucking, leading to a longer lifespan.
• Maintenance-Free: AGM batteries are sealed and do not require watering.
• Improved Cycling Capability: They handle deep discharge and recharge cycles better, beneficial for vehicles with frequent starts and stops or auxiliary power demands.
• Sustained Power: Tend to maintain voltage better during discharge.

While AGM batteries have a higher initial cost, their increased longevity and performance can offset this over time. If your NQR is subjected to harsh conditions, frequent starts, or has significant accessory loads, AGM batteries are a strong recommendation.

Post-installation relearn / reset procedure

After disconnecting and replacing the batteries in your 2024 Isuzu NQR, a few systems may require a relearn or reset procedure. While the NQR is a commercial vehicle designed for robust operation, modern vehicle electronics can be sensitive to power interruptions.

1. Engine ECU / PCM: In most cases, the engine control unit (ECU) or powertrain control module (PCM) will self-relearn its parameters over a few drive cycles. This involves driving the vehicle under various conditions (idle, city, highway) to allow the ECU to adapt to normal operating parameters.
2. Radio/Infotainment: You may need to reset your radio presets and clock. If equipped with a navigation system, it might take a moment to reacquire satellites.
3. Power Windows: Some vehicles require power window initialization after a battery disconnect. Typically, this involves holding the window switch down until the window is fully open, then holding it up until the window is fully closed, and repeating for each window. Consult your NQR owner's manual for specific instructions.
4. Diagnostic Trouble Codes (DTCs): In some instances, temporary fault codes (DTCs) related to low voltage might be stored. These usually clear themselves after a few drive cycles once stable power is restored. If a check engine light persists, professional diagnosis may be necessary.

It's always recommended to consult your 2024 Isuzu NQR owner's manual for the precise recommended procedures after battery replacement.

Signs of a failing battery

Being proactive about battery health can prevent unexpected breakdowns. Here are common signs that your Isuzu NQR's batteries might be failing:

• Slow Cranking: The most obvious sign. If the engine cranks slowly or sluggishly, especially on cold mornings, your batteries are weakening.
• Dim Headlights/Interior Lights: When cranking the engine, dimming lights indicate a significant draw on a weak battery.