2014 Ford F-250 Super Duty Battery Size, CCA & Replacement Guide

As an ASE-certified master technician, I’ve replaced countless batteries in heavy-duty trucks. If you drive a 2014 Ford F-250 Super Duty, knowing the exact battery specifications is critical to keeping your rig on the road, especially if you're hauling heavy loads, running a plow, or driving the 6.7L Power Stroke diesel.

Here is everything you need to know about replacing the battery in your 2014 Ford F-250 Super Duty.

Quick answer

• BCI group size: Group 65 (Standard for both the 6.2L Gas and 6.7L Diesel).
• CCA rating: Minimum 650 CCA for gas models; 750 CCA per battery for diesel models.
• Reserve capacity: Ideally 130–150 minutes to support heavy-duty electronics and winches.
• AGM vs flooded requirement: The truck originally shipped with Standard Flooded batteries, but an upgrade to AGM (Absorbent Glass Mat) is highly recommended for longevity and vibration resistance.
• Terminal layout: Top post (Left Positive).
• Physical dimensions (Group 65): 12.06" L x 7.5" W x 7.56" H.
• Dual-battery setup: The 6.7L Power Stroke diesel engine requires two Group 65 batteries wired in parallel. Always replace both batteries at the same time to prevent the older, weaker battery from draining the new one.

Replacement battery options

When it comes to a heavy-duty truck, you want a battery that can withstand severe vibration and high electrical demands. Here are some of the most reliable Group 65 replacement options:

• Optima YellowTop (Group 65): A premium AGM deep-cycle battery perfect for trucks with plows, winches, or aftermarket audio (Part # D65).
• DieHard Platinum AGM (Group 65): Offers 750 CCA and excellent vibration resistance, making it a great all-around choice.
• Interstate MTZ AGM (Group 65): Known for extreme durability and backed by a robust warranty (Part # MTZ-65).
• ACDelco Gold AGM (Group 65): A solid, reliable OEM-quality AGM replacement offering 775 CCA (Part # 65AGM).
• Odyssey Extreme Series (Group 65): The ultimate heavy-duty choice, providing massive cranking power (950 CCA) and exceptional deep-cycle capabilities (Part # ODP-AGM65).

AGM vs flooded — which does this vehicle need?

Your 2014 Ford F-250 came from the factory with a traditional flooded lead-acid battery. Therefore, a standard flooded battery is perfectly acceptable and will meet the OEM specifications.

However, for a Super Duty, an AGM battery is strongly recommended. AGM batteries are completely sealed and spill-proof. More importantly, they handle the extreme vibrations of a heavy-duty suspension much better than flooded batteries. If you drive on rough job sites, tow heavy trailers, or have the dual-battery diesel setup, the extra cost of an AGM battery will easily pay for itself in improved reliability and a longer lifespan.

Post-installation relearn / reset procedure

Unlike some newer European vehicles, the 2014 Ford F-250 Super Duty's Battery Management System (BMS) is relatively straightforward, but it still requires a reset to ensure proper alternator charging rates.

1. Using a Scan Tool: The best and fastest way to reset the BMS is by using a bidirectional OBD2 scan tool (like FORScan or a professional shop scanner). Navigate to the BMS reset function and follow the prompts.
2. The "8-Hour Sleep" Method: If you do not have a scan tool, you can allow the truck to relearn the new battery state of charge organically. After installing the new battery, lock the doors and let the truck sit completely undisturbed for at least 8 hours. Do not open the doors, use the key fob, or wake the modules during this time. The BMS will read the resting voltage and calibrate itself to the new battery.

Signs of a failing battery

If you aren't sure whether your battery is on its way out, look for these telltale signs:

• Slow or sluggish engine crank: Especially noticeable on cold mornings or in the 6.7L diesel.
• Flickering headlights: Lights that dim when the starter engages or when using the power windows.
• Electrical gremlins: The SYNC infotainment screen rebooting, or warning lights flashing randomly.
• Corrosion on the terminals: Excessive white or blue powder buildup around the battery posts.
• Swollen battery case: A sure sign of internal failure or overcharging.

Common battery issues for this generation

The 2014 F-250 generation is incredibly tough, but it does have a few battery-related quirks. For the 6.7L Power Stroke diesels, the most common issue is replacing only one battery. Because they are wired in parallel, replacing just one battery will cause the older unit to rapidly drain the new one, leaving you stranded. Always buy matching batteries from the same production batch.

Additionally, the factory battery terminal clamps on this generation are prone to stretching and corrosion. If your terminal clamps won't tighten snugly onto the new battery posts, you will experience intermittent starting issues. Replace worn terminal ends immediately.

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