2019 International LT Battery Size & Specs

Quick answer

• BCI Group Size: Group 31
• Cold Cranking Amps (CCA): 950–1000 CCA per battery
• Reserve Capacity (RC): 190–220 minutes per battery
• Battery Type: AGM (Absorbent Glass Mat) recommended
• Terminal Layout: Top post, typically positive left
• Number of Batteries: Four (4-battery setup)

Replacement battery options

• Interstate: 31-AGM7
• Odyssey: 31-PC2150S
• ACDelco: 31-AGM
• DieHard: DieHard 31-AGM

AGM vs flooded — which does this vehicle need?

The 2019 International LT, like most modern heavy-duty trucks, is equipped with a host of electronics that demand a steady supply of clean power. For this reason, AGM (Absorbent Glass Mat) batteries are the recommended choice. While traditional flooded lead-acid batteries can work, they are more susceptible to vibration and may not last as long in this application. AGM batteries are also spill-proof and generally offer a longer service life, making them a worthwhile investment for a truck that is likely used for commercial purposes.

Post-installation relearn / reset procedure

After disconnecting and replacing the batteries, there is no specific relearn or reset procedure required for the 2019 International LT. The truck's computer systems are designed to recalibrate on their own. However, it is always a good practice to start the engine and let it run for a few minutes to ensure that all systems are functioning correctly.

Signs of a failing battery

• Slow engine crank: The most obvious sign of a weak battery is a slow or sluggish engine crank. You may hear a "clicking" sound, which is the starter solenoid engaging without enough power to turn the engine over.
• Dimming lights: If you notice the headlights or interior lights dimming, especially when the engine is off, it could be a sign of a failing battery.
• Warning lights: The battery or charging system warning light on the dashboard may illuminate if there is a problem.
• Corrosion: Heavy corrosion on the battery terminals can impede the flow of electricity and indicate a failing battery.

Common battery issues for this generation

The 2019 International LT is a workhorse, and its electrical system is put to the test on a daily basis. The most common battery-related issues are often due to the demanding nature of the truck's operation. These can include premature battery failure due to deep cycling (running accessories with the engine off), loose or corroded battery connections, and alternator or charging system problems. Regular inspection and cleaning of the battery terminals, as well as ensuring the batteries are securely mounted, can help prevent these issues.

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