2014 Ford F-350 Super Duty Battery Size & Specs

Quick answer

• BCI Group Size: Group 65 (all engines)
• Cold Cranking Amps (CCA): 650 CCA (gas), 750 CCA (diesel, each)
• Reserve Capacity (RC): ~150 minutes
• Battery Type: AGM (Absorbent Glass Mat) is highly recommended, especially for diesel models, due to its vibration resistance and ability to handle high electrical loads. Flooded batteries are a budget-friendly alternative for the gas V8.
• Terminal Layout: Left-hand positive (SAE posts)
• Physical Dimensions (approximate): 12.1" L x 7.5" W x 7.6" H
• Diesel Setup: All diesel F-350s have a dual-battery setup, requiring two identical batteries that should always be replaced as a pair.

Replacement battery options

For the best performance and longevity, especially in diesel models with their high demands, we recommend choosing a high-quality AGM battery. Here are some popular and trusted replacement options for the 2014 F-350:

• Odyssey Extreme Series ODX-AGM65
• Optima YellowTop DH6 (Note: a group 65 adapter may be needed)
• Interstate MTX-65 AGM
• DieHard Platinum AGM BCI 65
• ACDelco Gold BCI Group 65

AGM vs flooded — which does this vehicle need?

The 2014 F-350 Super Duty, particularly models equipped with the 6.7L Power Stroke diesel engine, is a high-demand vehicle. Diesel engines require immense cranking power, and the dual-battery setup is designed to provide just that. Furthermore, these trucks are often equipped with power-hungry accessories like winches, plows, and auxiliary lighting.

For these reasons, an AGM battery is strongly recommended. AGM batteries offer superior vibration resistance—a key benefit in a heavy-duty truck—and are better equipped to handle the deep-cycling demands of modern electronics. The sealed, spill-proof design is also a safety advantage.

For the gas-powered 6.2L V8, a high-quality flooded lead-acid battery is a viable and more budget-friendly option, but an AGM will still offer a longer service life and better overall performance.

Post-installation relearn / reset procedure

After replacing the batteries in your F-350, you'll need to reset the Battery Management System (BMS). The BMS optimizes charging to prolong battery life, and it needs to know that new batteries have been installed.

If you don't reset the BMS, the system may continue to charge your new batteries as if they were old and degraded, which can shorten their lifespan.

While some sources suggest a complex sequence of flashing headlights and pressing the brake pedal, the most reliable method is to use a professional scan tool with BMS reset capabilities. This ensures the system is properly re-calibrated. Most repair shops can perform this service quickly.

Signs of a failing battery

Be on the lookout for these common indicators that your battery (or batteries) is on its way out:

• Slow Engine Crank: The engine turns over sluggishly, especially on cold mornings.
• Dimming Lights: Headlights and interior lights dim when the engine is off or at idle.
• Warning Lights: A battery or check engine light may appear on your dashboard.
• Swollen Case: If the battery case looks bloated or warped, it's a sign of internal failure and needs immediate replacement.
• Corrosion: Heavy corrosion on the battery terminals can impede electrical flow.

Common battery issues for this generation

The most common issue for the 2011-2016 Super Duty generation is failing to replace diesel batteries in pairs. The dual-battery system works as a team. If you only replace one, the older, weaker battery will drain the new one, leading to premature failure of both. Always replace both batteries at the same time with identical models.

Find a trusted shop on Repairius.