4 Best Batteries For 6.7L Cummins Diesel Engine Reviews

Batteries For Diesel Engine

Ever needed to be somewhere in a rush, but your car engine won’t start? It’s frustrating, right?

If your car uses a diesel engine such as the Cummins 6.7L, you should know that this kind of engine requires more battery power to start up compared to other engines.

You, therefore, need a heavy-duty battery that can service all your engine needs.

A good battery is one with solid specs like cold-cranking amps and a large reserve capacity.

A high cold-cranking amp provides the power needed to start up the engine and meet its other needs. The reserved capacity is necessary to run other accessories like the DVD player.

In order to prevent such frustrating situations in the future, I have done the homework and searched for the best batteries available in the market for a 6.7L Cummins Diesel Engine.



Check on Amazon Check on PlanetsHoup Check on DvaSata

The UPLUS Start-Stop AGM L70-M Maintenance Free Automotive Battery is a high-performance battery designed for modern vehicles, especially those equipped with start-stop systems. This battery promises reliability and longevity, making it an ideal choice for drivers seeking a maintenance-free option.

Performance and Compatibility

The UPLUS AGM L70-M is engineered to provide exceptional performance under various conditions. It’s compatible with a wide range of vehicles, including those with demanding electrical systems. Its advanced AGM (Absorbent Glass Mat) technology ensures efficient power delivery and enhanced durability.

Specification Details
Battery Type AGM (Absorbent Glass Mat)
Voltage 12V
Capacity 70 Ah
Cold Cranking Amps (CCA) 760
What I liked
  • The battery lasts longer than expected, even under heavy usage.
  • Excellent performance in extreme weather
  • You don’t have to check or refill the battery.
  • Strong start-stop functionality
  • Fits a variety of vehicle models, making it a versatile choice.
What I didn't like
  • Higher price
  • Lack of detailed size specifications, which can be important for fitting purposes.


2. ACDelco 94RAGM Professional AGM Automotive Battery

ACDelco 94RAGM Professional AGM Automotive Battery

Check on Amazon Check on Kiky Check on Summit

This battery manufactured by ACDelco has long cycles and stands out among the best available in the market.

It’s designed with high cycling capabilities, and fast charge receptivity, and works excellently for start/stop vehicle applications.

ACDelco has professional parts manufactured to meet expectations for fit, form, and function, offering high quality and great value.

They provide a competitively priced yet quality alternative to unbranded aftermarket parts.

The ACDelco gold-label specialty parts are made to meet original equipment expectations for exceptional applications that require enhanced performance. This works well for police cars.


Property Specification
Voltage 12 Volts
Battery Cell Type Silver-Calcium
Weight 51.6 pounds
Dimensions 12.4 x 6.9 x 7.5 inches
Warranty 3 years
Cold-Cranking Amps (CCA) 800
Reserve Capacity (RC) 140
Nominal Capacity over 20 hrs 80
Battery Type Dual Purpose
What I liked
  • Doesn’t require maintenance
  • It’s non-spillage, so no gas or acid leak as you use the battery
  • It has a high CCA to start up any kind of diesel engin
  • Starts the main engine quickly
  • Recharges very fast
  • Designed to last long and can serve in any vehicle that uses diesel engines
  • It can be placed in any position because of its anti-leak properties
What I didn't like
  • Not resistant to corrosion
  • Limited warranty
  • Contains chemicals that can cause cancer and other terminal illnesses
Problem Solved: This battery is designed with high-power performance capabilities. If you’re looking for a battery that will serve you for a long time and maintain high performance, then this is your best bet. ACDelco has laboratory-tested, field-proven batteries that are backed with an outstanding warranty.

3. Interstate Automotive Battery

Interstate Automotive Battery

Check on Amazon Check on DvaSata

The MTZ-34 model is renowned for its exceptional cranking power, ensuring that your vehicle starts smoothly in various weather conditions. Its compatibility with a wide range of vehicles, particularly those requiring high power output, makes it a versatile choice.

The battery’s robust construction and advanced technology contribute to its consistent performance, a crucial factor for daily commuters and long-distance travelers alike.

Secondly, durability is a hallmark of the MTZ-34. Built to withstand the rigors of daily use, it offers a longer lifespan compared to many of its competitors. Additionally, the battery’s low maintenance requirements make it a convenient option for those who prefer a fit-and-forget solution for their automotive power needs.

The MTZ-34 is designed with environmental considerations in mind. Its construction minimizes the ecological footprint, aligning with the growing demand for eco-friendly automotive products. Safety features are also a priority, with the battery boasting various protections against common hazards, ensuring a safe and reliable experience for users.

Property Specification
Battery Type AGM (Absorbent Glass Mat)
Voltage 12 Volts
Cold Cranking Amps (CCA) 800 Amps
Reserve Capacity 140 Minutes
Dimensions 10.85 x 6.76 x 7.82 inches
What I liked
  • Starts engines effortlessly in cold temperatures.
  • Extended lifespan, outperforming many other brands.
  • Consistent and dependable power delivery in various conditions.
  • The AGM technology used in this battery reduces the need for regular maintenance.
  • Eco-Friendly Design
What I didn't like
  • A bit pricey
  • Weight – relatively heavy, which might be a concern for certain vehicle types.
  • Limited Compatibility


4. Motorcraft Battery – BAGM94RH7800

Motorcraft Battery - BAGM94RH7800

Check on PlanetsHoup Check on Walmart Check on eBay

This battery stands out as a reliable and robust power source for a wide range of automotive needs. With its substantial weight of 56.2 pounds and dimensions of 7 x 12 x 7 inches, this battery is designed to offer a dependable and long-lasting energy solution for vehicles.

Its painted exterior and specific model number (BAGM94RH7800) indicate a focus on both aesthetics and functionality.

This product has garnered positive feedback from users, evident in its 4.3 out of 5-star rating on Amazon. Customers have praised its ease of installation and immediate readiness for use, highlighting its practicality and user-friendliness.

Feature/Specification Detail
Manufacturer Motorcraft
Model BAGM94RH7800
Item Weight 56.2 pounds
Product Dimensions 7 x 12 x 7 inches
Exterior Painted
Manufacturer Part Number BAGM94RH7800
Customer Ratings 4.3 out of 5 stars (34 ratings)
What I liked
  • Easy Installation
  • The battery arrives fully charged and ready for immediate use.
  • Reliable
  • It fits well in different models of cars, including some older models.
  • Coming from a reputable brand adds an element of trust and assurance.
What I didn't like
  • The price is a bit steep compared to other options.
  • It is relatively heavy
  • Limited Product Support

Buying Guide

When choosing a battery for your engine, consider the following factors:

  • Compatibility and Power Requirements: The 6.7L Cummins Diesel Engine demands a battery that can handle its power requirements. It’s essential to select a battery that matches the engine’s specifications to ensure smooth operation.
  • Climate and Conditions: Consider the climate and conditions in which your vehicle operates. Batteries perform differently under various temperatures and environmental conditions.
  • Longevity and Maintenance: A good battery should not only be powerful but also durable and low-maintenance, offering long-term reliability.

Key Features to Look For in a Battery

  • Cold Cranking Amps (CCA): This measures the battery’s ability to start an engine in cold temperatures. Higher CCA is preferable for diesel engines, especially in colder climates.
  • Reserve Capacity (RC): RC indicates how long a battery can run essential accessories if the alternator fails. A higher RC is beneficial for diesel engines.
  • Build Quality and Vibration Resistance: Diesel engines generate more vibration, so a battery with robust build quality and vibration resistance is essential.

Types of Batteries Suitable for 6.7L Cummins Diesel Engines

  • Flooded Lead-Acid Batteries: These are the most common and usually the most affordable. However, they require regular maintenance and are less resistant to vibration.
  • Absorbed Glass Mat (AGM) Batteries: AGM batteries are more expensive but offer better vibration resistance, longer life, and are maintenance-free.


Can I Use a Standard Car Battery for My 6.7 Cummins Diesel Engine?

No, standard car batteries are not recommended for a 6.7 Cummins diesel engine. These engines require batteries with higher cold-cranking amps (CCA) and reserve capacity to handle the higher power demands, especially during cold starts.

How Often Should I Replace the Battery in My 6.7 Cummins Diesel Engine?

Answer: The replacement frequency can vary based on usage and battery type, but generally, it’s advisable to check the battery every three years and consider replacement every 4-5 years to ensure optimal performance.

Does the Battery Type Affect the Performance of the 6.7 Cummins Diesel Engine?

Yes, it can significantly affect the performance. AGM (Absorbent Glass Mat) batteries, for example, offer better durability and efficiency, especially for vehicles with high electrical demands, compared to traditional lead-acid batteries.

Can Extreme Weather Conditions Affect the Battery Life of My 6.7 Cummins?

Yes, extreme weather conditions, particularly cold temperatures, can significantly impact battery life and performance. It’s crucial to choose a battery with a high CCA rating for better performance in cold weather.

Is It Necessary to Perform Regular Maintenance on My 6.7 Cummins Diesel Engine Battery?

While AGM batteries require less maintenance compared to traditional batteries, it’s still important to perform regular checks for corrosion, secure connections, and overall battery health to ensure longevity and reliability.

The Bottom Line

The batteries we have discussed in this article are found to be the best that are available in the market today.

Your 6.7L diesel engine deserves a high-quality and reliable battery for it to function properly.

When your car battery is in good condition, you also get to be at peace knowing that you can use your car any time that you choose.


Written by Kane Dan

Learn which is the most reliable year for used Honda Civic

5 Best And Worst Years For The Honda Civic: Revving Through History

Rollercoaster Ride of Excellence and Errors on chevy silverado

Best And Worst Years For The Chevy Silverado: A Rollercoaster Ride of Excellence and Errors