4 Best Battery For 6.7 Cummins Diesel Engine Review

If you want to upgrade your diesel engine, Cummins 6.7L, perhaps, you are here at the right place. We believe we narrow down your search with the best battery for the 6.7 Cummins review guide and reduce your stress and anxiety.

When it comes to powering the vehicles powered by the Cummins engine, it is advisable to choose the battery with solid and heavy-duty power. Besides, ensure that the battery you choose has high reserve capacity, cold-crank amps, durability, and other features.

Best Battery For 6.7 Cummins Diesel Engine

If you feel worried about finding out the battery with the above-mentioned features for your Cummins 6.7L diesel engine powered pickup truck, we are confident that our top 4 batteries review guide could be a great solution.

  1. ACDelco 94R AGM battery
  2. AGM Premium Delphi  Battery 
  3. 850 CCA battery Battery 
  4. Northstar 94r Pure Lead Automotive Battery

1. ACDelco 94R AGM battery

When it comes to purchasing a battery for your vehicle, especially for a 6.7 Cummins diesel engine truck, you need to make sure you are getting the best ones possible.

Choosing unreliable and wrong batteries will result in far more visits to automotive engineers. However, something as easy as the suitable battery can make your life stress less, which is why we are reviewing ACDelco 94RAGM Professional AGM Battery.

And this is the first choice in our Top 4 battery list for 6.7 Cummins. Let’s talk about some key features of this battery.

What is the most notable feature of this battery that makes it our favorite for cummin 6.7L?  Well, the ACDelco 94 becomes our favorite because it is an AGM battery that is spill-proof. With high-density negative paste, it can significantly increase battery life and performance.

Another most worthwhile feature of this unit is silver calcium-stamped alloy construction, which also stimulates the life cycle and performance.

Besides, the presence of calcium lead positive grid can enhance the conductivity and enables for minimum resistance.

With this reliable, solid, and well-designed battery, you will get enough power to start your pickup even in colder temperatures.

It features a robust envelope separator, including a puncture-resistant back, which prevents shorts and increases acid circulation. Overall, if you have a 6.7L Cummins, choosing this Volt battery could be the right choice.

  • AGM automotive 94R battery
  • High performing and long-lasting
  • Improve acid circulation
  • Highly charge- friendly
  • 100% leak and spill-proof
  • It's a bit heavier
  • Oversized battery


2. AGM Premium Delphi  Battery 

If you want to get a premium quality battery that can power all the electronics in your 6.7 Cummins diesel engine powered vehicle, Delphi BU9094R MaxStart AGM could be a better choice. With a solid cold cranking amp and reserve capacity, it becomes standalone to others.

You can easily start your car even in the cold weather with the range of this unit's cold-cranking power. Also, the reserve capacity allows you to run many accessories or charge several electronics.  With an extended life cycle, corrosion resistance, and superior vibration, it becomes our favorite choice.

The Delphi BU9094R is a full line battery unit that can provide maximum power delivery. Want to make your car safer and more connected? This battery could be a perfect unit, and it does by powering the electronics.

This battery's most worthwhile feature is its absorbed glass mat technology, making it a fast-charging unit than other traditional batteries.

  • RCs help to run windows to the DVD player.
  • The USA made top-line premium quality battery.
  • Easy to install
  • Deeper cycle and faster recharge
  • Reserve capacity is 140 min.
  • It has less chance of leakage.
  • Battery works but its smaller


3. 850 CCA battery Battery 

Another top-line battery out on the market is Odyssey Battery 94R-850 Performance Automotive Battery. This USA made battery unit could be a perfect match for your luxury vehicles.

It is a 12V performance battery made to deal with the increased use of accessories of your automotive.

Besides, with 850 cold-cranking amps, it can make the start of your engine easy and effortless every time.

When it comes to getting a battery with a long lifespan and deep cycle capacity, Odyssey 94R becomes the car owners' leading unit. It offers a 70% longer cycle than a traditional battery unit.

Another noteworthy thing of this battery that makes it our favorite is the spill-proof feature. Also, it is highly resistant to vibration.

With fast charge technology, you can make it fully charged within 4 to 6 hours. Though this unit's discharge rate is very low, it comes with a zero-maintenance system.

So want to get a battery for daily use or leave it for long since? If so, choosing Odyssey Battery 94R wouldn't disappoint you.

  • Deep cycle and longer lifespan
  • Fast recharge capacity -charged within 4 to 6 hours
  • Vibration resistant
  • Spill-proof performance battery
  • The self-discharge rate is low.
  • Cold-cranking amps (CCA) are slightly less.


4. Northstar 94r Pure Lead Automotive Battery

NORTHSTAR Pure Lead Automotive Group 94R (L4) Battery is our final choice in this review guide for 6.7L Cummins. This is another AGM battery that comes with an ultra-high-performance solution for your diesel engine powered automotive.

Want a battery designed to fulfill your need and capable of giving your worry-free service years after years? This pure lead automotive 94r (l4) battery by NorthStar could be a perfect option that can provide excellent performance. With a high lifespan feature, it could be an ideal unit for those looking for reducing overall cost.

Another cool feature of this unit is its high cold-cranking rate that provides enough power to start your vehicle. Moreover, with modern plastic packaging technology, it becomes resistant to both heat and vibrations.

This corrosion-resistant and spill-proof feature ensures that the electrolyte of this battery is protected. Overall, it would be well worth your money.

  • Pure lead AGM battery
  • Works well with a longer lifespan
  • Durable and powerful
  • Ideal for SUV, Sport and Off-road vehicles
  • No water leakage
  • Heavier than cheap battery unit
  • A bit pricey

Things to look for before buying Best battery for 6.7 Cummins:

1.      Types of battery:

There are two types of battery available on the market for your diesel engine powered vehicle. The two main types of batteries are – lead-acid and AGM.  AGM batteries are the most sustainable if the lead acid ones are the most common diesel pickup truck option.

2. Cold-cranking amps:

Cold-cranking amps (CCA) means the total number of amps a battery can discharge at the rate of 7.2 amps for 30 seconds at zero degrees. Severe cold is one of the most significant causes that make the engine start tough.

If you live in an area where the temperature falls continuously below 0° F, opt for a battery with a higher CCAs rate. In this regard, batteries with 500 Cold-cranking amps are suitable for your pickup truck.

3. Reserve capacity:

With 25 amps of discharge, the total battery's run time is referred to as Reserve capacity (RC). This measurement will often impact how many accessories you can run by your truck or what electronics you can charge before the battery expires.

In this regard, the AGM battery is best due to its highest RC. The AGM battery can keep almost 80% of their charge after a profound discharge.

4. Size:

Different sizes of batteries are available out on the market. Height, width, and length make the battery different from each other. When it comes to replacing OEM battery, ensure a better replacement with the best fit.

You can get the right size by accessing the make, model, year, and engine of your Cummins 6.7L diesel engine pickup truck into a similarity generator the battery producer's website.

Also, before choosing the batteries for your pickup vehicle, think about the dimensions and boundaries of them.

5. Additional features

Before purchasing a battery for your diesel truck, you need to remember the following tips and tricks. These are including:

  • Choose a battery with a higher life cycle, but keep in mind that the outside conditions and use can impact this measurement.
  • Don't forget to check the compatibility between the connection terminals and the battery of your truck.


Frequently Ask and Question (FAQs): Best battery for 6.7 Cummins

Question 1. How long should a diesel truck battery last?

Answer: The average lifespan of a diesel engine powered truck battery is 3 to 5 years. The OPTIMA battery can last three times longer than a normal lead-acid battery in the same job.

On the other hand, if you choose an AGM battery for your diesel truck, it will give you a longer lifespan than its counterparts. Besides, ensure that the battery is fully charged, which will increase the performance and lifespan.

Question 2. Can a diesel truck run on one battery?

Answer: The diesel engine powered trucks have two batteries, and they are joined in parallel connection.  Usually, diesel trucks need high cranking amps to run, and two batteries can provide that cranking amps.

When you use two batteries in parallel, they work simultaneously and give your truck enough power to start and run. However, using a single battery in 6.7L puts enough power on the process and will reduce battery life fast.

Question 3. Which battery is best for 6.7 Cummins?

Answer: We think the best battery option for 6.7 Cummins is ACDelco 94RAGM Professional AGM Automotive BCI Group 94R Battery. When it comes to getting a battery with stable starting power, this unit could be your favorite choice.

Its professional and heavy-duty offerings could be suitable for marine, industrial, and 6.7 diesel-powered vehicles. Great buy for the bucks.

Question 4. How many amps does it take to start a diesel truck?

Answer: A diesel engine is a common unit in large vehicles like tractors, pickup trucks, and industrial machinery. So, it needs more cranking amps.

The smaller diesel engine needs nearly 400 amps. On the other hand, you need more than 1000 amps to jump-start the larger engine powered vehicle.

Question 5. How do you charge a diesel truck with two batteries?

Answer: You need two battery chargers and a wrench to charge the batteries of your pickup truck. Start by separating the negative end on your 1st battery, succeeded by the positive end. After that, repeat with another battery.

Question 6. What are the problems with the 6.7 Cummins?

Answer: Let's take a look at some common issues with the 6.7 Cummins.

  • Injectors going poor.
  • Clogged turbocharger.
  • DPF and EGR problems.
  • Exhaust problems.
  • Normal check-engine light.
  • Head gasket failing.

Question 7. How much HP can you get out of a 6.7 Cummins?

Answer: The most powerful engine choice for RAM 3500 and 2500 pickup truck is Cummins 6.7L Turbo Diesel. With this engine, you will get 400 hp and 1000 pound-feet of diesel torque. It helps RAM provide top- class towing.