Best Battery For 6.7 Cummins [2021 Review]

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After the massive success of the Cummins 5.9L diesel engine, Cummins 6.7 is all set to make history. This engine provides a respectable amount of torque which is 1075 lb-ft, along with a high output rating of 420 HP. To match this big bull energy, nothing below a premium quality battery should be used. That’s why, we bring you the  best batteries for 6.7 Cummins of this year.

Top Best Batteries For 6.7 Cummins Reviewed

Before you make a purchase, especially online, make sure that the source is reliable. We highly recommend you to buy your batteries from a renowned site that has trusted customer reviews like Amazon.

Furthermore, don’t forget to compare the price listed by other retailers on Amazon. Some retailers charge a bit less or more for the same battery. But, don’t worry! We have cut down this process for you. Thus, you can pick one of the batteries listed below faithfully.

Brand
Best Overall
ACDelco 94RAGM
Best for the Money
Odyssey Battery 94R
Best Cheap Pick
Optima RedTop Series Battery
Product
ACDelco Gold 94RAGM 36 Month Warranty AGM BCI...
Odyssey Battery 94R-850 Performance Automotive...
Optima Batteries 8004-003 34/78 RedTop Starting...
Voltage
12 Volts
12 Volts
12 Volts
Item Dimensions
12.4 x 6.9 x 7.5 inches
6.85 x 12.36 x 7.47 inches
10 x 6.88 x 7.8 inches
Rating
-
-
-
Best Overall
Brand
ACDelco 94RAGM
Product
ACDelco Gold 94RAGM 36 Month Warranty AGM BCI...
Voltage
12 Volts
Item Dimensions
12.4 x 6.9 x 7.5 inches
Rating
-
Price
Best for the Money
Brand
Odyssey Battery 94R
Product
Odyssey Battery 94R-850 Performance Automotive...
Voltage
12 Volts
Item Dimensions
6.85 x 12.36 x 7.47 inches
Rating
-
Price
Best Cheap Pick
Brand
Optima RedTop Series Battery
Product
Optima Batteries 8004-003 34/78 RedTop Starting...
Voltage
12 Volts
Item Dimensions
10 x 6.88 x 7.8 inches
Rating
-
Price

Best Battery Overall: ACDelco 94RAGM

ACDelco Gold 94RAGM 36 Month Warranty AGM BCI...

Choosing faulty and incorrect batteries will significantly increase the number of visits to automobile engineers. However, something as simple as the correct battery can help you relax, which is why we’re looking at the ACDelco 94RAGM Professional AGM Battery.

And this is the first option on our Top three Cummins battery list. Let’s take a look at some of the battery’s essential features.

What is the most distinctive characteristic of this battery that makes it our top choice for Cummins 6.7L? The ACDelco 94 stands on the top of our favorite battery for 6.7 Cummins because it is a spill-proof AGM battery.

This battery has an extended lifespan, and one can boost its battery life and performance by using high-density negative paste.

The silver calcium-stamped alloy construction of this device is also a valuable feature, as it extends the life cycle and improves performance.

Furthermore, the inclusion of a calcium lead positive grid can improve conductivity and reduce resistance.

You’ll have enough power to start your truck even in colder temperatures with this dependable, solid, and well-designed battery.

It has a sturdy envelope separator with a puncture-resistant back to prevent shorts and improve acid circulation. Ultimately, if you have a 6.7L Cummins engine, this Volt battery might be the best option for you.

Pros

  • The battery has a vent cap design.
  • It has lead-positive grids.
  • The battery has a high-density negative paste.

Cons

  • The battery gets heated up quickly.
Sale
ACDelco Gold 94RAGM 36 Month Warranty AGM BCI...
  • High density negative paste, improves performance and increases battery life
  • Enhanced life alloy or Silver Calcium stamped alloy increases cycle life and improves performance
  • Calcium Lead positive grid, maximizes conductivity and allows for low resistance

Best Value For Money: Odyssey Battery 94R

Odyssey Battery 94R-850 Performance Automotive...

There’s a lot of commotion in the Odyssey Battery 94R market right now! Its ability to produce up to 850 CCA power is one of the key reasons it is the best choice for most truckers.

Aside from that, the rate of the battery is 1500 PHCA and 100MCA, indicating its power, performance, and efficacy. You won’t be able to find a better one than the SAE terminals! Let’s go deeper into the details.

According to Odyssey, AGM batteries are more potent and have a longer recharge cycle. The recharge cycles will improve the batteries’ typical efficacy, and you’ll have fewer cranking troubles when starting the vehicle, thanks to the faster recharge cycle.

Furthermore, the Odyssey 94R AGM battery has a 4 to 6 hour reboot time. It implies that the battery will perform optimally even on the coldest winter days. This Odyssey 94R-850 battery can start your 6.7 Cummins Turbo Engine no matter how long it has been parked in the garage.

The Odyssey 950 high-performance battery also comes with a wide variety of clever functions. The owner can place it in any way except the reverse terminals, one of the top-notch quality features.

It means that the battery can be placed anywhere inside the truck to start the engine. Once the battery is totally exhausted, as previously stated, the battery can complete a 100 percent charge in approximately 4 hours.

 It’s great for truckers and professionals who need to travel on cold, snowy days because it’s spill-free. The spill-free shape also helps to promote acid circulation.

Pros

  • It gets charged in less than 4 hours.
  • It comes with an assurance that you don’t need to charge it within two years of usage (after buying it).
  • It has SAE terminals.

Cons

  • The battery life is comparatively short.
Odyssey Battery 94R-850 Performance Automotive...
  • 70 percent longer cycle than conventional deep
  • can store on open circuit up to 2 years
  • capable of 100 percent recharge in 4-6 hours

Best Low-Price Battery: Optima RedTop Series Battery

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

The appropriate AGM-type starter batteries are featured in the Optima RedTop Series battery, making it the best battery for the 6.7 Cummins category.

To achieve the ignition or starter, the 6.7L Cummins Turbo Diesel Engine requires exceptional performance. As a result of the spiral coil technology used to construct these Optima Batteries, the 8004-003 can handle 720 and 800 cold-cranking amps.

The Optima RedTop, one of the heavy-duty batteries, is suitable for most heavy-duty trucks and vehicles. This 12 Volt 800 Cold Cranking Amps Optima Battery provides the ideal power for the 6.7L Cummins engine to start up and fuel the accessories.

The fact that this Optima RedTop battery has a reserve capacity of 100 minutes is remarkable. It implies that even if the engine isn’t charging the battery, it can still deliver solid results for up to 1.5 hours. Isn’t this the best battery for a 6.7 Cummins Engine?

Poor weather and freezing winter nights may wreak havoc on a diesel engine’s starting and ignition! Worry not with the Optima redtop series battery, which includes an alternator with a 13.8 to 15 volts voltage range.

The battery can use the total capacity of 10 amps to start a 6.7L Cummins Turbo Diesel engine without difficulty.

Each year, several complaints concerning leakage and severe vibrations are filed with battery service providers. It is no longer the case with the Optima RedTop series battery, which features an anti-spillage construction as well as 15x more vibration resistance.

 Pros

  • It has ten amps of supreme power.
  • Easy to install– comes with user friendly manual.
  • It comes with a leak proof design.

Cons

  • This battery is not suitable to charge up other accessories.
Optima Batteries 8004-003 34/78 RedTop Starting...
  • 12-Volt, 800 Cold Cranking Amps, Size: 10" x 6 7/8" x 7 13/16" tall, Weight: 38.8 pounds, Dual SAE &...
  • Reserve capacity of 100 minutes for constant performance
  • Optimal starting power even in bad weather

Features To Consider When Buying Batteries For 6.7 Cummins

Finding the right battery is not as simple as choosing the most powerful battery that fits the budget. There are several other features you must consider. Knowing that, buying batteries can seem complicated.

Here are five features you must consider to buy the right battery for the 6.7 Cummins:

Cars lined up in a parking lot

#1 Battery Size

When it comes to buying the correct battery for your 6.7 Cummins, one should be well aware of the dimensions of the battery. It’s because not every battery is the same. And even if they look the same, they differ in dimensions.

It’s better to be pre-prepared than being confused while finding your batteries. You can take your owner or user manual along with you to the shop. If somehow you lost your user manual, it’s better to consult the battery owners. They can provide you with guides from which you can refer and find the one for your car.

Note: You have to be precise about the size of the battery because an oversized one won’t fit the battery tray, and the under-sized one will wear out before than expected.

#2 Price Of The Battery

An essential thing to note while buying a battery for your Cummins engine is to be on a budget.

Today most lead-acid batteries are available for under $200, while the price of deep cycle batteries is above $250

#3 Battery Age

Have you ever thought about why your lead-acid batteries fall short of service so quickly? Well, here’s why!

Years ago, lead-acid batteries didn’t come in robust packaging but rather in a naked form. They were vacuum sealed that could be removed. Further, the owner could fill the acid or water at his convenience, and everything worked well. Moreover, these batteries lasted very long.

But today, the case is different. Manufacturers fill the batteries with acid for the chemical reaction to take place. It results in the deterioration of the metal rods/plates inside the battery due to the response.

It implies that the minute these chemical batteries are set up, the reaction starts taking place at a prolonged rate, reducing the battery’s shelf life.

Today, this is the case in almost every battery that is available in the market. Therefore, it is advised not to buy a battery that is older than three months from its manufacturing date.

Car battery

Moreover, if your car batteries are imported, ensure that they are fresh and not more than 1 or 2 months older than their manufacturing date.

#4 Reserve Capacity

The standing capacity of the battery is shortly referred to as RC or Reserve Capacity. In other words, the reserve capacity is the amount of power your new battery has by default. 

If the new battery has a high reserve capacity, then your car can run on the battery itself even if the alternator trips off. Don’t randomly choose a battery solely based on its reserved power.

Refer to the owner manual and tally the range mentioned in the table. Odyssey Batteries comes with highest reserve capacity among the ones discussed above.

#5 Location And Category Of The Terminals

The next thing is to check that your battery fits the system. For that, you have to look for a new battery that has the exact dimensions as your previous one.

Don’t forget to check the terminal positions; there is a positive and a negative terminal on every battery. But, they should be in the right place as per the fit. The terminals can be on the top or side-mounted.

It is also possible that they are in their proper place as per the requirement but flipped in positions. 

If the latter happens, the cables won’t reach the terminals properly as cables cannot intervene. Stretching and straining the wires can damage the entire system. Thus you will end up paying a heavy bill.

Therefore, to ensure that you are getting a suitable battery for your diesel engine, check the BCI number. 

Conclusion

Starting your diesel engine in chilled winters may seem like breaking the ice with your head. But worry not, this guide highlights one of the top-performing batteries that provide a high CCA value to start your engine even in the nail-biting winters.