Diesel and gasoline engines are similar in many ways, but the explosions made that create the power occur differently. To start the diesel engine, you need more power, which is why it’s essential to purchase the best battery for a diesel truck. What is the best battery for a diesel truck? We will evaluate your options to find the model that suits your equipment.


Preview

Model

Amp Rating

Battery Type

Check Price

Optima Batteries 8004-003 34/78 RedTop...

Optima Batteries 8004-003

800

AGM

XS Power D3400 XS Series 12V 3,300 Amp AGM...

XS Power D3400

3300

AGM

Odyssey 65-PC1750T Automotive and LTV Battery

Odyssey 65-PC1750T

950

AGM

Optima Batteries 8014-045 D34/78 YellowTop...

Optima Batteries 8014-045

750

AGM

Odyssey PC925 Automotive and LTV Battery

Odyssey PC925

330

AGM

ACDelco 65AGMHR Professional AGM Automotive...

ACDelco 65AGMHR

775

AGM

Odyssey Battery 0752-2020 lead_acid_battery

Odyssey Battery 0752-2020

723

AGM


Benefits of Heavy-Duty Batteries for Diesel Trucks

Heavy-duty diesel truck batteries offer additional advantages over standard batteries. With the appropriate power, you gain the performance you need out of your truck. A cheap battery might not provide the starting power required, especially when the weather is cold. Plus, having the best diesel pickup truck battery ensures you won’t need to replace it often.


Choosing a Quality Diesel Truck Battery

Vehicle Compatibility

The most important aspect of finding the best battery for a diesel pickup truck is to ensure it fits your vehicle. It must be compatible with your engine and connection terminals. The truck battery must also fit firmly in place under the hood in order to minimize the vibrations and reduce wear.

Reserve Capacity

Many people overlook the value of the reserve capacity with a diesel truck battery. This capacity is related to the output and shows you how long the battery can run consistently. You don’t want to be stranded with a battery that doesn’t work the way it should, which is why you must consider the capacity.

Cold Cranking Amps/Cold Start Feature

A truck battery that delivers more than 600 CCA (cold cranking amps) is the ideal option. This handy feature ensures that the battery works when the temperatures drop. In addition, you should look for the cold start feature, which kickstarts the battery to warm it up. With this extra boost, you can start the engine with ease.

Amp Hours

The amp-hour is something else to focus on. As an example, a battery that features a 1 amp-hour capacity will supply a continuous current of one amp to a load for one hour, two amps for 1/2 hour, or three amps for 1/3 hour. This number reveals the relationship between the current discharge time.

Life Span/Cycle

What is the best diesel truck battery? It’s the one that will last for many years and provide reliable performance. When you purchase a new truck battery, you don’t want it to be more than six months old. Check the manufacturer date on the label, which shows you the month and year of production.

Battery Size

Along with the compatibility, you need to also consider the size of the battery. Look at the dimensions to ensure the battery of your choice will fit in the truck. If you choose a battery that doesn’t fit just right, you could face performance issues and deal with more vibrations.

Power at Low & High Temp

Do you plan to operate your truck in extreme temperatures? Battery power is hindered by extremes. Heat accelerates the chemical activity, but also speeds up corrosion and shortens the lifespan of the battery. Cold temperatures, on the other hand, make it more difficult to start the battery because the chemical processes slow down.

Build Quality/Durability

Batteries will malfunction prematurely because of damage. You can reduce the instance of damage by ensuring the battery is held tightly in place with the hold-down. Also, you want a battery with a strong and stable build. High-end brands offer designs that reduce shock and impact for maximum performance.

Price & Warranty

You can find a variety of price points in our diesel truck battery reviews. While the diesel truck batteries price might seem like a top factor, you don't want to neglect the value you receive by paying for a battery that will last. We recommend that you choose a company that offers a minimum of a two-year warranty to ensure you are protected from premature failure. 


7 Best Diesel Truck Batteries Reviewed

1. Optima Batteries 8004-003

Our Top Pick!

Voltage

12V

Amp Rating

800

Battery Type

AGM

Dimensions

10 x 6.9 x 7.8 inches

Warranty

3-year

This Optima battery for a diesel truck excels above the rest. It’s a 12-volt battery featuring 800 cold cranking amps for superior performance. Plus, it weighs less than 39 pounds, making it easy to install. With a reserve capacity of 100 minutes, you get the reliability you are looking for. Even in bad weather, you shouldn’t have trouble getting your diesel truck started.

What makes this model unique is the construction. Optima Batteries takes a lot of time perfecting the durability. That’s why the company offers a case that is fifteen times more vibration-resistant than the typical truck battery. Because it is leak-proof, you can also mount in any position. On top of it all, the convenient carrying handle makes placement simple.

Overall, the design and features that this battery offers continue to bring in high customer reviews. However, recently there have been more complaints about premature failure. It's unsure if the company changed something in the manufacturing process or if it was simply a bad batch. Either way, the battery is covered by the company's three-year warranty, which provides further peace of mind. If you need reliable power, you can use this Optima battery with a high-quality diesel truck battery trickle charger.

Pros

  • Highly rated
  • 800 Cold Cranking Amps
  • Maintenance-free
  • Vibration-resistant

Cons

  • Quality issues recently

2. XS Power D3400

Runner Up

Voltage

12V

Amp Rating

3300

Battery Type

AGM

Dimensions

11.9 x 10 x 8.7 inches

Warranty

3-year

It doesn’t take much money to upgrade to something even more powerful. This XS Power battery has a lot to offer if you are looking for maximum performance. The 12-Volt AGM battery produces 3,300 amps. This high-output battery is also constructed with M6 terminal bolts, ensuring the best battery terminals for diesel trucks. As with the previous option, this model doesn’t require any maintenance and is leak-proof.

Because of its design, you can mount it anywhere without worrying about spills. In addition, the AGM battery is completely sealed, valve regulated, and vibration-resistant. The ultra-low internal resistance offers you the reliability you expect. Not only does XS Power also offer a three-year warranty, but the company gives customers a 60-day money-back guarantee. If the battery doesn't perform the way you would expect, you can simply get your money back.

Looking at the customer reviews shows there isn’t much to be worried about. A handful of negative reviews talk about some issues with support, but this occurred few and far between. It doesn't appear that it is a concern from the majority of users. Most of them can't say enough about the power and performance. If you want an upgrade over the OEM batteries, you can't go wrong with XS Power. 

Pros

  • Highly rated
  • M6 terminal bolts
  • Maintenance-free
  • Ultra-low internal resistance

Cons

  • Few customer support issues

3. Odyssey 65-PC1750T

Best Battery For Dodge Diesel Trucks

Voltage

12V

Amp Rating

950

Battery Type

AGM

Dimensions

14.9 x 10.7 x 10.1 inches

Warranty

4-year

It's not challenging to find Dodge diesel truck batteries when you look at the Odyssey brand. This highly rated AGM battery provides 950 cold cranking amps and a service life lasting up to ten years. If you use it with your diesel truck battery charger, you can ensure that it always remains ready to go. It also contains a 145-minute reserve capacity.

Compared to most conventional deep cycle batteries, you will be pleased with the seventy percent longer cycle life. This battery offers up to 400 cycles at eighty percent depth of discharge. What you receive is high stable voltage that lasts as long as possible. It also contains a high recharge efficiency rating, allowing you to get a full recharge in just four to six hours.

The non-spillable design can be mounted in any way you want. The case is also designed to provide vibration-resistance and resist impact from shock. Odyssey provides a four-year warranty with this particular battery for maximum peace of mind. However, this model is heavier than the other two. Expect it to weigh a little less than 60 pounds, which will require some muscle to install. Overall, you won’t find an option with this power that comes with such high reviews.

Pros

  • Long service life
  • Reliable performance
  • Maintenance-free
  • 4-year warranty

Cons

  • Heavier

4. Optima Batteries 8014-045

Best Dual Purpose Battery

Voltage

12V

Amp Rating

750

Battery Type

AGM

Dimensions

10 x 6.9 x 7.8 inches

Warranty

3-year

Another option from Optima Batteries is this YellowTop model, which isn’t much different from the other one. It is also a 12V AGM truck battery, but it weighs much less than the previous option at just 43 pounds. The company utilizes a unique SpiralCell Technology to build its batteries. This construction includes individual spiral-wound cells that are made of lead oxide coated lead plates.

The company claims that this process adds fifteen times more resistance for increased durability. In addition, the battery has a 120-minute reserve capacity, so that you are never disappointed. With the 750 cold cranking amps, starting your truck in extreme temperatures shouldn’t be a worry either. Just like the previous battery from Optima, this model also features a three-year warranty for maximum protection.

However, it doesn’t feature reviews as exceptional as the other model. It appears that the quality of this battery might have decreased over the years. It seems the newest reviews have offered complaints about the lifespan and customer service. If you have had success in the past with Optima, you might not be concerned, but it helps to read through the reviews first. However, it does seem to provide reliable performance in a unique spill-proof and maintenance-free design.

Pros

  • Unique construction
  • Reliable performance
  • Maintenance-free
  • 120-minute reserve capacity

Cons

  • Lower customer reviews

5. Odyssey PC925

Best AGM Battery For Diesel Trucks

Voltage

12V

Amp Rating

330

Battery Type

AGM

Dimensions

11.4 x 10.3 x 8.3 inches

Warranty

4-year

You can get a lot for your money if you want a cheaper option. This Odyssey 12V AGM battery features a low price but doesn’t sacrifice performance or quality. Odyssey batteries are rated to provide a lifespan of up to ten years, which is far more than typical lead-acid batteries. It also has a longer cycle life. Expect a seventy percent longer cycle life when compared with conventional deep cycle batteries.

It also provides up to 400 cycles at eighty percent depth of discharge, allowing for highly stable voltage over a longer period. The battery will charge at blazing fast speeds, up to 100 percent within just four to six hours. It also maintains a 52-minute reserve capacity. The non-spill battery comes with vibration-resistant properties and handles high impact shocks like a champ.

The reviews are exceptional, and the company offers a four-year replacement warranty, but you know the lower price means you have to give up something. This particular model only features 330 cold cranking amps, so it's not considered the heaviest duty battery on the market. If you are concerned about starting power in the winter, this might not be your top pick, but it works exceptionally well otherwise.

Pros

  • Durable construction
  • Long cycle life
  • Maintenance-free
  • Fast charging times

Cons

  • Lower cold cranking amps

6. ACDelco 65AGMHR

Best Battery For GM Diesel Trucks

Voltage

12V

Amp Rating

775

Battery Type

AGM

Dimensions

11.8 x 7.5 x 7.4 inches

Warranty

3-year

If you have a diesel truck and you desire an OEM battery replacement, you want to choose this model from ACDelco. This AGM model is a true OEM replacement for trucks requiring a Group 65 battery. It doesn’t require any maintenance or water. Plus, you don’t need to worry about leaks or spills, since the battery is completely sealed.

ACDelco has been trusted to make GM parts for countless decades. The batteries are created with a durable design that withstands the abuse and wears your truck endures. Plus, the company provides a three-year warranty, so you gain the same protections as the other brands offer. If you need reliable starting power, this 12V battery with 775 cold cranking amps will get the job done effectively.

The weight is low at less than 50 pounds, and the price remains reasonable. The customer reviews are also off the charts, proving that you can count on this brand. However, some people were dissatisfied with the way the battery arrived. Some customers received the battery dead or in a damaged package. Of course, this could happen with almost any battery and doesn't seem to be something to stress about. Overall, this battery provides an exceptional value for the performance. 

Pros

  • Reputable brand
  • Durable case construction
  • Maintenance-free
  • Spill-proof

Cons

  • Shipping concerns

7. Odyssey Battery 0752-2020

Best Diesel Truck Battery For Cold Weather

Voltage

12V

Amp Rating

723

Battery Type

AGM

Dimensions

10.9 x 6.9 x 7.5 inches

Warranty

4-year

To complete our top diesel battery list, we have to look at one more from Odyssey Batteries. This company provides some of the top batteries on the market, but the prices remain low and reasonable. As with the other ones, you can expect this AGM battery to provide a seventy percent longer cycle life. It also has a two-year shelf life, giving you peace of mind if you store your truck.

With the high stable voltage over longer periods, you get the performance you need. It is also rated at 723 cold cranking amps to ensure the winter weather doesn’t slow you down. When you need to recharge the battery, you will find that a full charge only takes between four and six hours, which is exceptional. It also maintains a 109-minute reserve capacity.

As with the other Odyssey batteries, expect the 4-year replacement warranty to cover you in case of premature failure. In addition, the customer reviews signify just how valuable this battery is. The only negative reviews and there aren't many, discuss possible concerns with premature failure. However, the warranty should have covered that, and the customer likely received a new battery. Overall, Odyssey provides the diesel battery you need when you demand a lot out of your truck. 

Pros

  • 4-year replacement warranty
  • Durable
  • Maintenance-free
  • Fast charging times

Cons

  • None

Installing & Charging Diesel Truck Batteries

When the time comes for a diesel truck battery replacement, you will find that the steps aren’t much different than a standard car battery.

  1. 1
    Remove the negative cable from the terminal first.
  2. 2
    Remove the positive cable from the terminal, ensuring it never touches the negative cable.
  3. 3
    Lift out the battery carefully; it will likely be heavy.
  4. 4
    Clean the connections with baking soda and water before installing a new battery.
  5. 5
    Position the battery and reconnect the cables operating backward, first positive and then negative.
  6. 6
    Ensure the connections are tight and secure.

How to Charge Diesel Truck Batteries

There are several methods to use when you need to charge the diesel truck battery. If it’s completely dead, you might need the best battery jumper for a diesel truck. Otherwise, you could opt for the best battery charger for diesel trucks instead. As with a regular automobile, you will hook the negative connector to the negative terminal and vice versa before charging.


How to Charge a Diesel Truck with 2 Batteries

Learning how to jump start a diesel truck with 2 batteries is a little different. To accomplish the task with diesel truck batteries in parallel, you could opt to use one diesel truck battery jump starter. You could also opt for two of the best battery chargers for a diesel truck. You connect one charger to one battery and the other to the second. Then, set the charger and allow it to boost the levels.

This video shows you how to hook the equipment up to one battery if the two are connected in parallel.


Battery Storage & Maintenance

Here are a few tips to ensure your diesel truck batteries last longer.

  • Maintain the water levels: If the electrolyte levels are low, the electricity doesn’t flow correctly. You can’t do this on maintenance-free batteries.
  • Inspect the battery: Perform regular inspections to ensure that there are no cracks or damage to the case. If you notice any damage, you need to get a new battery.
  • Clean the terminals and connection: To keep the battery corrosion-free, clean it with baking soda and water.

If the battery is in good shape but isn’t holding power like it once was, you might consider battery reconditioning to restore the life.


People Also Ask (FAQs)

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

Diesel trucks have bigger batteries to start the engine, which requires more amperage. Generally, small diesel engines need between 300 and 500 amps, while the larger motors require 1000 amps or more.

How many volts should a diesel truck battery have?

The diesel truck battery voltage should be at 12.6 or higher. If the engine is running, the measurements should read between 13.7 and 14.7 volts.

Does it matter what size battery I use for my diesel truck?

Yes. The battery must fit the compartment properly and supply the power needed to start the engine. Ensure that you choose a battery that is compatible with your diesel truck.

How do I determine the battery size needed for my diesel truck?

Batteries come in a variety of sizes. You will find many widths, heights and lengths. When you replace your OEM battery, you can search for compatibility by the year, make, and model of your vehicle. Make sure the connections line up, and you don't want them to touch the hood, or you could face a fire hazard.

How long do diesel truck batteries last and when should I replace them?

You can expect to get five to seven years out of a typical truck battery if you take care of it. However, the frequency of starting, running time duration, and load amounts affect the overall life.

How do you test a diesel truck battery?

To test 12V batteries on a diesel truck, use a load test tool. If the battery is good but doesn’t have enough juice, you will need to use your battery charger for diesel truck.

Why do some diesel truck batteries fail?

Batteries fail prematurely because of excessive discharge without recharging. You can eliminate this by using the best battery maintainer for diesel truck. In addition, extreme temperatures and excessive vibration can lead to failure.

Why do diesel trucks need two batteries?

Two batteries are required in many diesel trucks because of the higher cranking amps. These are needed to handle the high-resistance load that occurs during starting.

Can a gasoline powered vehicle jumpstart a diesel battery?

It is possible to jumpstart a diesel truck battery with a gasoline vehicle. First, you want to turn on the battery warmer for the diesel truck. From there, you would proceed as if you were jumpstarting a typical automobile.


Conclusion

Who makes the best diesel truck battery? We think Optima is the leader and worthy of investing in. The Optima Batteries 8004-003 34/78 RedTop, in particular, offers the performance you demand at a reasonable price. With this equipment, there’s no need to be stranded with a dead battery ever again.

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