When buying a car battery, just like for any other application, there are numerous factors to consider. But before we delve into that, we are looking at the best battery for 6.7 Cummins, so that at the end, you have a clear perspective of what you need to buy. There are several options of batteries that you will find on this list, and suitable for different applications and conditions.

Table of Contents
What Are the Factors That You Should Consider Before Buying the Best Battery for 6.7 Cummins?
As we have highlighted above, there are several considerations to make before buying a battery. For whatever case, you need to first analyze and know the inside out. That means we are looking into the specs to understand how the battery functions, and the benefits that you get from one battery over the other. With that, here are some of the considerations:
Performance and voltage capacity
The first thing, of course, is the voltage or the capacity of the battery. That is what determines everything. Whether you are going to buy would depend on whether it meets the capacity that you are looking for. That is the voltage and amperage. The other thing is the performance. You need a battery with enough power to drive your needs.
Compatibility
The second consideration to make is all about whether the battery is compatible with your vehicle or not. Batteries are of different types. Therefore, you need a type that works with your car or vehicle model. Of course, you will also find universal options but it is important to check specificity with your vehicle model.
Cell composition and durability
Is it a Lead-Acid type or pure Lead? Of course, there are many composition options. Therefore, it would depend on your experience with the batteries to understand this. The durability is also a matter of concern for the battery. You should consider the cycle charge times, and the overall housing of the battery.
Adaptability to weather conditions
Some batteries may not ignite in extreme conditions such as winter. When it is too cold, you need a battery that will still ignite with power. Some others also run out fast while in hot environments. These are some of the factors that you ought to remind yourself when looking to buy the best battery.
Whether you are looking for the best group 65 AGM battery, or just the best diesel battery, you have a great variety of options in this guide. It brings to you the best selected batteries that fit different vehicle models, and for other applications as well. With this, you have all the information regarding the batteries that we have reviewed. This will be helpful for choosing the right battery.
What is The Best Battery for 6.7 Cummins?










Due to the great variety and thousands of models that we came across, we only picked these few options. They are all the best in performance and other specs. However, it is not enough without picking what we found as our best overall. That is XS Power D3400 High Output Battery. It is a reliable option that has been trusted for performance, and with other quality features.
Top 10 Best Battery for 6.7 Cummins
Having tackled the things that you need to consider to buy the best battery for your vehicle, now you have the best options that we picked based on performance, reliability, and quality among other things that we put into consideration.
Renogy Deep Cycle Battery

If you are looking for a battery that does not need topping up, Renogy Deep Cycle Battery is a good choice. The battery does not require any maintenance and is good for RV, 6.7 Cummins, and for home use as well. It is powerful and versatile and you will always find it as a useful power source.
Reliable performance
Renogy Deep Cycle Battery is one of the best batteries that you can rely on as your source of power. They are efficient and with a low self-discharge rate. That means when fully charged, it takes a good amount of time to get discharged completely.
High-quality construction materials This battery is made from high-quality ABS containers and does not leak acid. It also features thick glass mat separators that are absorbent and that is what works to prevent the leaks. Therefore, if you are looking for a versatile battery that you can use with your car, this is a recommended one to buy.
Expert opinion: Renogy Deep Cycle Battery as mentioned is a reliable battery that is suitable for wide applications. It can run most home appliances and most importantly is the 6.7 Cummins.
ACDelco Gold 94R AGM Battery

This is another reliable and high-performance battery that is suitable for a variety of uses. You can use it to power your home appliances, but for vehicles, you need to check compatibility with your model. of course, it fits most trucks such as Ram 2014 6.7 dually 3500 CTD. It is a group 94R type.
Enhanced lifespan
One of the benefits of getting this battery is that it lasts long. ACDelco Gold 94RAGM Battery comes with a high-density negative paste that works to enhance the performance of the battery. Apart from improving performance, it also makes the battery durable.
Reliable performance
There are so many features that serve to boost the performance of this ACDelco Gold 94R AGM Battery. Just to highlight, the calcium Lead positive grid, silver calcium stamped alloy, and puncture resistant back among other features all work to enhance the performance of this battery.
Expert opinion: This is a great and powerful battery that is versatile and suitable for most trucks and vehicles. ACDelco Gold 94RAGM Battery is also a good standby battery for supplementing power shortage. It is also durable and recommendable.
Optima Batteries Starting Battery

Even in harsh weather conditions, this battery delivers optimal performance. Optima Batteries Starting Battery is a 12-volt capacity and good for heavy use. It comes with a strong starting burst and is a reliable battery that is also versatile and multifunctional. It fits group 34/78 and most vehicle types.
Reliable Performance
One thing about this battery is that it is reliable and delivers better ignition power. It is spill-proof and you can install it at any position. Optima Batteries Starting Battery is also a good battery when it comes to recharging since it gets to full charge 2x faster than other batteries.
Recharge and Maintenance
The best thing about Optima Batteries Starting Battery is that it recharges faster than most other similar batteries. It does not spill as we mentioned, and you can install it at any position. In addition to that, it doesn’t need any maintenance except the normal recharging. The other advantage that comes with this battery is that it is strong enough to withstand extreme G forces.
Expert Opinion: Optima Batteries Starting Battery is a powerful battery that delivers great power even in winter. It is versatile and you can use it with most car types, SUVs, trucks, and other vehicles. You may also use it for other power needs at home.
XS Power D3400 High Output Battery

This is one of the best sealed and non-spillable batteries that offers great power output for any power needs. It does not require maintenance except the normal charging requirements. In addition to that, XS Power D3400 High Output Battery is easy to install, and you can do it in any position.
Maintenance and Performance
XS Power D3400 High Output Battery is a great and reliable battery in terms of power and performance. The 12-volt capacity makes it versatile and multifunctional. That suits vehicles and other power needs. It features an absorbed glass mat, that is an electrolyte suspended in fiberglass, and does not need maintenance or top-up.
High output and Low Resistance
The fact that the XS Power D3400 High Output Battery features low resistance means that it delivers strong enough power for your power needs. The output makes it suitable for powering different vehicles that are compatible with. Of course, it is suitable for most vehicle types; cars, SUVs, and trucks.
Expert Opinion: This battery comes with a high-power output and low resistance. It can be a good dodge Cummins battery. XS Power D3400 High Output Battery is maintenance-free and easy to manage.
Ampere LifePO4 Deep Cycle Battery
No products found.This is a 12-volt 100Ah battery and is made to fit automotive grade quality. When it comes to performance, Ampere LifePO4 Deep Cycle Battery is a powerful battery and a durable one. It can last for up to 10 years as compared to the Lead acid type.
Maintenance Free and Waterproof
You don’t need to keep topping up this awesome and powerful battery. It is tightly sealed and maintenance-free. Therefore, you only need to charge it when need be. It is also IP65 level waterproof and offers superior performance.
Durability and Performance
This battery as we have earlier mentioned can last or up to 10 years. It is also efficient when it comes to performance even at extreme temperature conditions. This battery is versatile and is a great power backup that you need to consider if you are looking for the best.
Expert Opinion: Ampere LifePO4 Deep Cycle Battery is versatile and suitable for outdoors, power backup, and for powering your vehicle. However, you need to check compatibility if you are going to use your car.
No products found.
BtrPower LiFePO4 Battery

One of the advantages of this battery is that it is ultra-safe. BtrPower LiFePO4 Battery features lithium-iron phosphate cells that have been proven to be safe. That means the battery will not catch fire. When compared to the Lead Acid type, this is 1/3 smaller and lighter. It is a powerful battery that has been tested and proven hence reliable.
Powerful and Versatile
This battery is first of all durable. It lasts longer than the Lead Acid types. It is also versatile. That means you can use it for whatever the function that you want to. You can use it for powering your vehicle, if you find it compatible. You can also use it for RV, emergency, and for backup among other uses.
Charge Cycles and Durability
It is the number of charge cycles that determine the durability of this battery. This is because it is a maintenance-free type and you don’t have to maintain it by topping up. BtrPower LiFePO4 Battery can last for up to 7000+ charge cycles. That is in approximation of 10 years.
Expert Opinion: This is an all-purpose battery that you can use to power your vehicle, for backup, solar system, and other functions. It is durable and great in performance hence is a reliable battery to buy.
Optima DH6 Yellow Top Batteries

Optima DH6 Yellow Top Batteries is one of the reliable batteries that you get on the market. It is a 12-volt battery, and is a Lead Acid AGM type. You will like the performance of this Optima DH6 Yellow Top Batteries since it is a durable and great type that you can always trust. It works perfectly for homes, vehicles, and other uses.
Vibration Resistant and Durable
One of the things you will like about Optima DH6 Yellow Top Batteries is that it is resistant to vibration. That means you can use it with any vehicle, so long as it is compatible. One thing to note also with compatibility is that it is suitable for specific vehicle types. In addition to that, this battery can be installed in any position and can last long.
Good Reserve Capacity
Let’s first say Optima DH6 Yellow Top Batteries is a great and powerful battery. It features optimal ignition power as the name puts, and 140 minutes of reserve capacity. The good thing with it is that it can start even in extremely low temperatures.
Expert opinion: This is a great and versatile battery that is reliable in performance. It is recommendable for home powering needs, specific vehicle types, and for backup. It can ignite even in bad weather and is durable in quality.
ODYSSEY 65-PC1750T Automotive Battery

This battery is made to fit most types of vehicles if not all. ODYSSEY 65-PC1750T Automotive Battery is super powerful and a great choice to consider. The 12-volts battery is a Lead-Acid type, and works perfectly for versatile uses. It also works for everyday use, emergency, and backup.
Performance and Durability
What matters a lot for any battery is the performance. The second important thing is to see your battery last for long while serving your power needs. ODYSSEY 65-PC1750T Automotive Battery is a classic case of a durable and powerful battery. It can be recharged for up to 400 cycles, and that is at 80% discharge depth. It also delivers massive ignition power that everyone would want to enjoy.
Compatibility
As we mentioned, this battery is universal and can fit most vehicles. Whether you want the best battery for diesel truck, or the best battery for ford f350 diesel, you can try out this powerful option. It is a universal fit type and also versatile.
Expert opinion: Since it is universal, most of the users found it as useful 7.3 and 6.0 powerstroke batteries. It is also universal and you will like the performance and reliability that it comes with.
Delphi BU9094R Max-Start Automotive Battery

This is a 12-volt battery that is suitable for passenger cars. Delphi BU9094R Max-Start Automotive Battery is also a great versatile battery that you can use for other applications. It belongs to group 94R and the battery cell composition is Lead Acid. It is, therefore, a recommendable battery that you should consider if you want the best.
Performance and Reliability
We have said that Delphi BU9094R Max-Start Automotive Battery is a great battery. In terms of performance, it is the best. It delivers more power and better ignition than most other batteries in the same category. In addition to that, it is 20 times resistant to vibrations. That makes it suitable for rough conditions and vehicles.
Durability
On the part of durability, you should expect Delphi BU9094R Max-Start Automotive Battery to last you for years. It is a maintenance-free type with more recharge cycles than other similar models. In addition to that, it is corrosion-resistant and tightly sealed.
Expert opinion: Delphi BU9094R Max-Start Automotive Battery is a great choice for passenger vehicles. It comes with better cycle life and recharges faster. It is also powerful and delivers optional performance for a wide variety of applications.
NorthStar Automotive Battery

This is a pure Lead battery that is reliable in performance. It looks great and is also the best in terms of performance. NorthStar Automotive Battery is a worthwhile battery that works for passenger cars and SUVs. It is also suitable for other applications that include emergency, powering some home devices, and for outdoor power needs.
Performance and Reliability
NorthStar Automotive Battery is a reliable brand that you need to consider. It is worth it for passenger and SUV cars and is the best with better cycling life. It also features excellent ignition with more power and up to 1,650 pulse amps. It also recharges faster than most batteries in a similar category.
Maintenance and Durability
When it comes to durability, NorthStar Automotive Battery is something that you can use for years. It offers more cycling life than most other batteries. It also features advanced housing with the best plastic materials that ensures that there is no spillage. Apart from spillage, it also makes the battery last. In addition, this is a maintenance-free type of battery.
Expert opinion: NorthStar Automotive Battery is a worthwhile battery to try out with your car or SUV. It delivers great power and is durable. It belongs to group 94R (L4) type and is recommendable.
Types of Diesel Batteries
There are different types of diesel batteries. It is important to understand each so that you will know the type that is most suitable for your car or vehicle. In that regard, diesel batteries are classified into the following:
Absorbent Glass Mat batteries (AGM).
These offer the best performance for cold cranking amps. That means they are best suited for extreme temperature conditions such as winter.
Lead-Based batteries.
They are more suited for warm environments than for cold weather. They may fail to ignite when it is too cold. Therefore, you can choose these depending on the environment you operate in.
How do you charge a diesel truck with two batteries?
A diesel truck uses two batteries for better cranking power. That it is difficult to ignite an engine of a big truck using only one battery. As a pair, you charge them as a unit. That means you need to have two chargers so as to help you charge the two batteries as a unit.
Frequently Asked Questions (FAQs)
Anyone with the knowledge of batteries would or have ever asked any of these questions. They are common especially for people who want to understand more with different batteries. Some of these questions include:
Why does diesel truck have 2 batteries?
Diesel engines will require high-resistance and a higher amp to crank. That is made possible when using two batteries than when operating with a single battery.
How long should a diesel truck battery last?
It depends on the conditions of use, and also the vibration resistance of the battery. This is when used in rough conditions. In addition, the battery’s lifespan also depends on weather conditions. On extreme temperatures, batteries may last shorter than on normal temperature conditions.
What are the signs of a bad battery?
A bad battery is easy to identify. One of the signs is that it drains off fast. Regardless of the condition, whether it is hot or cold, a fully charged battery that runs out fast is a bad one. A battery is also bad if it fails to start or causes the vehicle to crank slowly. Dimmer headlights also indicate a bad battery.
Should you replace both batteries in a diesel?
For better performance, and if you can afford, it is the best idea and the best practice to replace both batteries. If you can’t afford to buy a pair, then you can replace the one that needs replacement the most.
Which battery do you charge on a diesel truck?
You charge as a system. That means you will need to have two chargers for charging the two batteries at once. This is regardless of whether they are connected in series or in parallel.
How many amps does it take to start a diesel truck?
A normal diesel truck will require at least 400 amps to start. However, the bigger diesel truck will require much more, that is about 1000 amps. So, it depends on the size of a truck.
Does temperature affect AGM batteries?
All batteries are affected by changes in temperature. This affects the discharge rate and so to AGM batteries.
How to Buy the Best Battery for 6.7 Cummins?
When it comes to choosing the best battery, whether a Duramax battery or a dodge Cummins battery, you need to spend a few minutes to analyze the features. It is completely difficult to rate batteries since they are of different nature. However, we are only picking the best in terms of performance, durability, and other common features that everyone is looking out for.
Best overall
Looking at the overall features and performance, we found XS Power D3400 High Output Battery as a great and powerful choice that beats them all. It is one of the most reliable options and with the capacity to be mounted in any position. It also fits most vehicles and other applications.
Best for budget
For the best budget, or a good price, Renogy Deep Cycle Battery is the way to go. It is also a powerful battery with reliable features and specs. It works for large vehicles such as trailers and other vehicle types. It is also powerful and durable and comes with an affordable price that is good for a small budget.
Final Thoughts
You have all the varieties and options of the best batteries to get what suits your needs. Whether you need the best heavy duty truck battery, or just for small cars and off-roaders, we have covered all of them in this guide. You need to make an effort to make your comparison based on your specifications, compatibility with your vehicle, and other considerations that you may have.
You May Like Also: