What’s the Best Battery for a 6.7L Cummins? (Reviews-2024)

Are you looking for the best battery for a 6.7L Cummins? Then, you’re in the right place!

Odyssey 65-PC 1750T - the best battery for a 6.7L Cummins Engine

Heavy-duty diesel engines like Daimler AG, Navistar International, Caterpillar, and Cummins 6.7L, by and large, need heavyweight batteries for performing.

So when you’re driving a truck outfitted with a Cummins6.7L diesel engine, you’ll have to make sure that your vehicle is equipped with a hardwearing battery. Additionally, if you upgrade to a more powerful diesel engine (such as the Navistar or Cummins6.7L) than the current one, you’ll need a robust battery.

Tough and durable diesel engines like those mentioned above usually come with add-on extras like pumps and indicator lights. No wonder such potent diesel engines require equally powerful batteries for optimal performance. While shopping for a replacement or new battery that works in sync with your vehicle’s Cummins6.7l diesel engine, ensure that you choose a product with versatile features like excellent reserve capability and proper cold-cranking amps.

So, let’s take a look and try to find the best battery for 6.7L Cummins engines without further ado.

Best Batteries for 6.7L Cummins Engines – Comparison Table

Model	Group	CCA	Price
Odyssey 65-PC 1750T (Top Pick for 65)	65	130	Check Price
ACDelco 94RAGM (Top Pick for 94)	94	850	Check Price
Delphi BU9094R	94	800	Check Price
Odyssey 94R-850	94	850	Check Price
NorthStar NSB-AGM94R	94	840	Check Price

Odyssey 65-PC 1750T (Editor’s Choice for Group 65)

Odyssey automotive and LTV batteries have built a solid reputation over the years for delivering enormous starting power, deep cycling capacity, and swift upturn, which vehicles need. However, whether you use your pickup for emergency towing or regular driving, your vehicle now comes with modern features that call for the truck to deliver more power. And this is precisely where the Odyssey 65-PC 1750T comes to your aid, enabling your vehicle to perform beyond your expectations.

For a start, the 65-PC 1750T packs in more lavish plates as its plates have been shaped out of 100% pure lead. The higher the number of dishes, the greater is the plate surface area, and ultimately more power delivery. In addition, the 65-PC 1750T battery from Odyssey lasts three times longer than conventional batteries and delivers twice the power at 80% depth of charge and 400 cycles.

Odyssey batteries have been designed with meticulous care to work with a range of heavy-duty vehicles and LCVs, including but not limited to trucks, pickups, SUVs, off-roaders, and 4x4s. The 65-PC 1750T by Odyssey comes with more plates than spiral wound battery packs and therefore has a 15% greater plate surface area packed in.

Features

Absorbed glass mat (AGM) design: does away with acid spills.
Corrosion-resistant, high-conductivity tinplated brass terminals
Sealed profile: Promotes internal recycling of gases
Incredibly robust terminal seal
Robust flame retardant cell containers
Automated relief valve

Pros

Full-bodied internal cell connections thwart and minimize damage from vibrations.
The battery offers 40% extra reserve capacity and more power as it eliminates the dead space between cylinders in a six-pack structure.
Pure virgin lead construction of plates maximizes surface area and boosts recycling.
The AGM design prevents acid spills.

Cons

Much heavier than other batteries belonging to its category
Quite expensive

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ACDelco 65AGMHR

All ACDelco Professional Automotive AGM Batteries feature excellent recycling capabilities and charging receptivity, extremely imperative for ‘start/stop’ vehicular applications. The ‘Absorbed Glass Mat’ structure ensures that the battery stays thoroughly spill and leakproof. The AGM design makes sure that the electrolyte stays locked permanently inside the glass mat separator rather than flowing freely within each cell.

Plate pressure remains steady under all conditions, thereby considerably decreasing the amount of active mass sacrificed from the grid. No wonder ACDelco AGM batteries tend to last longer compared to conventional batteries. Very few diesel vehicle battery manufacturers offer the 36-month free replacement warranty window that ACDelco offers.

Whether the application is recreational, marine, industrial, or automotive, ACDelco AGM batteries can cater to practically any requirement. Field-proven and laboratory-tested ACDelco batteries always have and continue to define the parameters for performance.

Features

Extremely charge-receptive with high-cycling capabilities so very essential for start-stop
Subjected to strict quality control checks to prevent chances of leaks
100% maintenance-free
Designed with scrupulous care for resisting corrosion
12-month/12,000-mile warranty (whichever is applicable first)
AGM design makes the battery fully spill-proof and leakproof

Pros

100% spill and leak proof AGM battery; electrolyte conducting electrical charge stays permanently inside the glass mat separator
Ideal for start/stop applications: Very charge-receptive with outstanding cycling capabilities
Oxygen-recombination chemistry minimizes water loss; Battery hardly needs any maintenance
Sustained plate pressure boosts battery longevity
3-year free replacement warranty

Cons

The battery might deteriorate and die due to sulfurization (or sulfation) if not changed regularly
Unable to hold a charge even if the vehicle is not used for a couple of days
The battery might go out of service much earlier than its projected lifespan.

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ACDelco 94RAGM (Editor’s Choice for Group 94R)

You’ve to doubly ensure that you’re buying a top-quality product, especially when it comes to selecting a battery for your 6.7L Cummins diesel engine pickup. If you believe a battery is not suitable for your diesel engine truck, then not only will the battery die out quickly, but it will also affect the vehicle’s performance and lifespan.

If you’re searching for a durable battery to replace the battery in your pickup installed with Cummins Powerstroke 6.7L, then the ACDelco 94RAGM makes a good buy. This battery is supremely charged receptive, as well as has exceptional cycling capabilities. These two versatile functionalities make the battery perfect for start/stop applications.

Additionally, since the electrolyte permanently stays in place in the glass mat separator, the possibility of leak or spill is practically nil. Oxygen recombination technology goes a long way in ensuring no water loss, thereby increasing the battery’s overall longevity. Vent capping prevents leakage of acid, and calcium lead positive grid boosts maximum conductivity and decreases resistance.

Features

Extremely durable
Maximum conductivity
Extended lifespan
Performance-oriented

Pros

Silver Calcium stamped alloy enhanced cycle life.
Completely leak and spill-proof
Very charge-receptive and excellent cycling capabilities
Makes most of oxygen recombination technology for preventing water loss

Cons

Does not hold a charge for more than a couple of days
The battery is somewhat oversized and a tad too heavy
Limited warranty
It does not resist corrosion

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Delphi BU9094R

You can always bank on Delphi Technologies regardless of whether you’re looking for a hardwearing battery for your diesel pickup or truck. The BU9094R encompasses a broad spectrum of CCA (cold cranking power) and high reserve capabilities like all other Delphi batteries. In addition, mean cranking power guarantees that your vehicle starts instantly every time you turn on the ignition.

RCs (reserve capacity), on the other hand, aid in operating power accessories starting from DVD players to heated seats.

All Delphi AGM batteries, including the BU9094R, provide the vibration resistance twenty times compared to traditional batteries and last twice as long. Furthermore, the Delphi BU9094R has more than adequate cold-cranking amps for powering up a diesel engine even in inclement weather. Additionally, the battery’s CCA rating ensures enough juice for running the vehicle’s electronics accessories.

Features

It is twenty times more resistant to vibration in comparison to conventional batteries
It remains functional much longer than traditional batteries
OEM AGM battery seamlessly replaces your existing battery
AGM technology for faster recharging and better leak resistivity than conventional batteries

Pros

Entails cold-cranking power (CCA) in a wide range: Deliveries adequate power for powering all electrical/electronic accessories of the vehicle
CCA also furnishes sufficient juice for starting a heavy-duty diesel engine in freezing weather
Superior AGM technology for quick charging, sustaining charge, and boosted lifecycle.
Extremely resistant to corrosion and vibration

Cons

Many customers have had issues like vehicle not starting immediately and radio resetting automatically
Several customers have reported that the battery died out within 2-3 years

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NorthStar NSB-AGM94R

The NorthStar NSB-AGM94R battery comes equipped with an unbeatable cycling life, making it supremely compatible with heavy-duty diesel engines. The NSB-AGM94R battery also boasts of rapid charging functionality together with an extraordinarily high cold cranking power that guarantees robust backup for your pickup’s power requirements. In addition, superior plastic packaging goes a long way in ensuring that the battery pack is exceptionally resistant to temperature and vibration extremes.

Features

Quick start each time and every time
Plates made from pure virgin lead: Excellent reserve capabilities and exceptional cycling competence
Charges/recharges faster in comparison to conventional batteries.
Cycles more than 400 times vis-à-vis 80% DOD (depth of discharge)

Pros

Guaranteed OEM fit: Built complies with BCI standards
Superior AGM construction relieves you from the hassle of cleaning terminals or checking water levels
Encased in high-quality plastics for heat resistance and long-term performance
Virgin lead AGM technology for exceptional CCA delivery and reserve capacity cycling capability

Cons

The warranty period is too short

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Odyssey Battery 94R-850

The 94R-850 Battery by Odyssey has been designed ergonomically and with extra care to deal with the extensive use of different vehicle accessories. Thanks to its matchless features, this Odyssey Performance Series 94R-850 battery impeccably blends deep cycling capacity and exceptional cold-cranking amps. In addition, the Odyssey lead-acid battery is incredibly performance-oriented, guaranteeing an easy and quick start every time you turn the ignition.

The 94R-850 has been designed correctly and shaped out of premium quality materials that impart it with an extended lifespan. Enormously resistant to tremors and impervious to leaks, the 94R-850 is one of the best batteries you can choose for your pickup fitted with a Cummins 6.7L diesel engine. This battery gets fully charged in 5-6 hours, owing to rapid charge technology.

Another noticeable benefit of opting for this battery is staying functional with an open circuit for two years.

Features

Extraordinary deep cycling capabilities
Highly reliable
Remains in service for many years on end
Capable of coping with the increased power for running onboard accessories in the vehicle
Meager self-discharge rate

Pros

Ergonomically and intelligently designed to check leakages and spills.
Plates made from durable material for resisting vibration
It holds its own even it circuit remains open (disconnected) for two years
Superior cold-cranking amp capacity

Cons

Several customers have complained that the battery died ultimately after a few months
Remarkably heavy, taking out the shower for servicing and putting it back could take some doing.

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Frequently Asked Questions About Batteries for 6.7L Cummins

What is Cummins 6.7L?

The RAM 2500 and 3500 pickups work best and excel on the road when they have Cummins 6.7L Turbo Diesel engines installed under their hoods. Cummins’ 6.7L Turbo-Diesel engine can deliver up to 1000 pound-feet of pure torque and 400HP, enabling RAMs to tow heavy loads. Moreover, when the RAM 3500’s Cummins 6.7L diesel engine is coupled with the AISIN AS69RC six-speed automatic transmission, the pickup can haul loads weighing over 31,000lbs.

The 2021 RAM 3500 and 2500 are a cut above the traditional heavy-duty pickups and trucks, delivering unprecedented driving quality. However, the heftiest RAMs brag colossal engine and max towing-torque figures, as mentioned above. The 2021 Ford Super Duty, despite featuring higher towing and engine torques, trails behind the RAMS in terms of a refined and smooth ride, thanks to the latter being outfitted with Cummins diesel engines.

The Cummins 6.7L enjoys a solid reputation for offering an unrivaled fuel economy. On the other hand, the 6.7L is also legendary for its unmatched 15,000-mile oil-change interregnums. In 1989, Cummins introduced the 5.9L turbo diesel and commemorated its 30-year joint-venture with RAM pickups and trucks via its 2019 ultramodern 6.7L turbo diesel.

The up-to-the-minute 6.7L turbo diesel engine boasts an upgraded torque, horsepower, lesser weight, and better NVH (noise, vibration, and harshness). Besides the high-pressure pump’s improved capacity, the latest 6.7L turbo diesel comes equipped with numerous versatile features. Some of these are:-

The advanced fuel-delivery system comes with an innovative 29,000psi fuel pump and a fuel rail integrated with Cummins Filtration “filter-in-filter” NanoNet® technology.
A CGI (compact graphite iron) material for the block facilitates boosting the cylinder pressure capacity while bringing the overall heft by nearly 60lbs
An all-new cast-iron cylinder head comprising high-temperature tolerant exhaust valves activated by a new hydraulic lash adjuster in the block, thereby eliminating the need for valvetrain adjustment service intervals

Cummins 6.7L Battery Sizes for Different Cars

Regardless of whether you’re shopping online or visiting a retail outlet, you’ll discover that there are multiple battery brands out there. Nevertheless, only a handful of producers are manufacturing the various brands, including East Penn Manufacturing, EnerSys Energy Products, Exide, and Johnson Controls. So if you own a truck or pickup outfitted with a diesel engine such as a Cummins 5.9L/6.7L Turbo Diesel or Ford 6.0L/6.4L/6.7L Turbo Diesel, then Group 65 batteries are your best bet.

However, make sure that your vehicle’s OEM recommends the size above the group before you proceed to purchase. For instance, if you have a 2006-2017 Dodge RAM Cummins 6.7L, you’ll need two Group 94 batteries. On the other hand, if you own a 2015-2017 Ford Powerstroke 6.7L, you’ll require 2 Group 65 batteries.

When buying batteries in pairs, make sure you buy a compatible set to prolong your pickup’s electrical system’s overall life.

How Long Should a Battery for 6.7L Cummins Last?

The high-quality battery you choose for your pickup fitted with Cummins 6.7L turbo diesel should furnish the power required to crank up the starter and start the vehicle. The modern-day batteries specially designed for heavy-duty trucks and pickups are guaranteed to perform optimally throughout their lifecycle.

These batteries’ versatility lies in that you can comfortably drive to an auto-parts store before they stop working. But you’ll surely get some warning signals that your battery is about to go kaput, thus offering you sufficient time for replacing it before it’s too late.

It’d be impractical to pinpoint diesel truck batteries’ specific lifespan as they’re not created equal. Several factors could influence your pickup battery’s lifetime, including the ones outlined below:-

Condition of drive belt and alternator
Driving habits
Enhanced electrical use
Driving in extremely cold or hot weather

Of course, your truck or pickup’s battery will not last a lifetime. So, you’ll have to consider replacing the battery at some stage. Typically, the battery will stay in service for a maximum period of 3-5 years. Hence continuing to use the battery beyond its stipulated lifecycle will not only adversely affect the vehicle’s engine, but there is also the likelihood of the battery malfunctioning unexpectedly.

No wonder the majority of manufacturers recommend that you should replace your vehicle’s battery every five years.