AC Delco VS Duralast Battery- Which is the Battery to Choose?

The battery is one of the most important parts of a car. So, it is important to select the best battery for your car.

Though there are lots of car batteries available in the market; AC Delco and Duralast have the great popularity. Now the question is, which is best to pick between AC Delco VS Duralast Battery?

This article will help you make the best decision for your car by comparing the features of both batteries so you can choose the one that works best for you. So, let’s get started with it.

Overview of AC Delco Battery

AC Delco batteries are a trusted choice for automotive and marine applications. They are designed to provide the reliable starting power and long life, even in extreme weather conditions.

The internal design of AC Delco batteries is also unique. They feature a combination of positive and negative plates, which are separated by a gel electrolyte. This gel electrolyte provides superior performance and extended service life. It also helps to protect the battery from damage caused by overcharging and over-discharging.

Overall, AC Delco batteries are a reliable and durable choice for automotive and marine applications. They offer excellent performance, and long life, and are designed to be environmentally friendly. Whether you need a starter battery for a small car or a deep cycle battery for a large truck, AC Delco has the perfect solution for you.

Overview of Duralast Battery

Duralast batteries are a line of automotive batteries manufactured by AutoZone, one of the leading automotive parts and accessories retailers in the United States. Duralast batteries are designed to provide reliable power for your vehicle and to offer long-lasting performance and durability. 

They are designed with advanced grid technology that helps them to start quickly and deliver more power than traditional lead-acid batteries. They also feature a built-in safety mechanism that prevents overcharging and helps to protect your vehicle’s electronics. Plus, they are engineered to withstand extreme temperatures and vibrations, making them a great choice for any environment.

Overall, Duralast batteries are an excellent choice for anyone looking for reliable, powerful, and long-lasting automotive batteries. With their advanced grid technology and built-in safety features, you can count on Duralast batteries to provide the power you need and the peace of mind that comes with a reliable product.

AC Delco VS Duralast Battery – Comparison

As you need to pick the best one between AC Delco VS Duralast Battery, you should know the differences between them. Here we try to make a comparison between these two batteries. It will surely help you to choose the better one.


When it comes to the design of batteries, they both have their own advantages and disadvantages. AC Delco batteries are designed with a top post that is perfect for corrosion prevention. It’s also perfect for vehicles that have a positive ground system.

On the other hand, Duralast batteries are designed with a side post that is great for vehicles with a negative ground system. So, you have to choose which one is best for you according to your needs.


AC Delco batteries are known for their reliability and long life. They’re designed to provide consistent starting power even in extreme conditions, and they’re perfect for vehicles that frequently tow or carry heavy loads.

On the other hand, Duralast batteries are built for high-performance driving. They deliver quick starts and plenty of power for vehicles that need more speed and acceleration. If you’re looking for a battery that can handle a lot of wear and tear, a Duralast is a right choice.


Duralast batteries require less maintenance than AC Delco batteries.

Duralast batteries have a design that is more resistant to corrosion and leaks. The positive and negative plates are protected by a rubber separator, which prevents them from coming into contact with each other. This helps to extend the battery’s life and keep it performing at its best.

On the other side, AC Delco batteries require more regular maintenance. The positive and negative plates are not protected by a rubber separator, which means they are more likely to come into contact with each other. This can cause the battery to leak and corrode.


You may be wondering, which battery is better when it comes to compatibility? Both AC Delco and Duralast batteries are designed to fit a variety of vehicles. The AC Delco battery is designed and tested to work with most cars and trucks, while the Duralast battery is also designed for cars and trucks, but includes a few additional models like SUVs and some recreational vehicles.

When it comes to fitting the battery into your vehicle, both the AC Delco and Duralast batteries are designed for easy installation. They both come with an onboard computer that lets you know if the installation was successful or not. That makes them both great options for those who want a quick and painless installation process.

So when it comes to compatibility, both brands are good options for those who own cars and trucks as well as other vehicles. Whether you need a replacement or an upgrade, you can rest assured that either brand will get the job done for you.

Cold Cranking Amps

When it comes to cold-weather performance, one of the key metrics you’ll want to look at is the “cold cranking amps” (CCA). This is a measure of the performance of a battery in starting an engine at low temperatures.

The higher the CCA, the better a battery can handle colder temperatures and start your car faster. The AC Delco battery has a CCA of 600 or 750, depending on your vehicle and model, whereas the Duralast battery has a CCA of 900 – 1000. So if you live in a cold climate and need your vehicle to start quickly in sub-zero temperatures, then the Duralast battery would be the better choice for you.

Reserve Capacity

In terms of the Reserve Capacity of AC Delco VS Duralast Battery, they are quite similar in this aspect. The Reserve Capacity of an AC Delco battery is approximately 210 minutes, and the Reserve Capacity of a Duralast battery is approximately 200 minutes.

The Reserve Capacity is so important as it indicates how long a battery can provide a steady voltage when it’s not being used. This is important for any type of vehicle that may be used in situations where the voltage output needs to remain consistent, such as towing or off-roading.

In these situations, even a few minutes of reserve capacity can mean the difference between making it to safety or being stuck out in the middle of nowhere.


Voltage is the most important thing to notice while choosing a battery. In this case, both the AC Delco and Duralast batteries offer 12 Volts. However, when it comes to durability, the AC Delco battery is slightly better as its higher CCA helps in withstanding more deep cycle charges.

The high CCA provided by the AC Delco battery helps it to continue functioning even after deep discharging and recharging. On the other hand, Duralall batteries are slightly compromised in this aspect. As a result, you will have to replace the Duralast battery after some time as compared to AC Delco Batteries.

In terms of Voltage, both of them seem comparable at first but in reality, AC Delco has a slight upper hand over the other one.

Average Lifespan

The average lifespan of a battery can be an important factor when it comes to choosing the best battery. The AC Delco battery has an average lifespan of 4-5 years, while the Duralast battery has an average lifespan of 3-5 years.

When it comes to the average lifespan, both batteries offer good performance for a few years, but the AC Delco battery tends to last a bit longer due to its stronger design and better quality materials used in its construction. Also, the AC Delco batteries come with a maintenance-free design which further increases the lifespan of the batteries.

On the other hand, Duralast batteries tend to have shorter lifespans because they are not as well built as their AC Delco counterparts and often require more frequent maintenance and replacement.

Price & Warranty

Moving on to the price and warranty, it’s interesting to see how these two batteries compare. AC Delco batteries have a higher starting price than Duralast, with an average of around $180, depending on the model.

However, the advantage to this slightly higher cost is that AC Delco offers a longer warranty than Duralast, which typically only offers up to 36-month warranties. The AC Delco warranty can range from 36-84 months depending on the battery you buy.

When it comes to price and warranty, it really depends on what you are looking for in a battery. Those who want the longer-lasting option may be better off with an AC Delco battery as they come with stronger warranties and can last up to 8 years in some cases.

If cost is your primary consideration, then Duralast may be the better option since it has a lower starting price and shorter warranties.

AC Delco VS Duralast Battery- The Winner

So, which of these two batteries is the better choice? Well, it really depends on your needs and budget.

If you need a battery that offers long-life performance, AC Delco might be the best option. It also has a higher cold-cranking amps rating and provides superior cranking power. On the downside, it’s slightly more expensive than Duralast, but with its longer lifespan and better performance, it could be worth the extra money for some people.

The Duralast battery is an excellent value-for-money option if you’re on a tight budget. It offers reliable power with enough reserve capacity to get you through most daily tasks without any issues. It’s also highly compatible with many vehicles and requires less maintenance compared to other brands. However, its average lifespan is shorter than AC Delco’s battery and it has a lower cold cranking amps rating.

Final Words

ACDelco and Duralast are two of the most popular brand batteries on the market. They both offer a variety of battery types that are designed to meet the needs of different customers.

When it comes to choosing between AC Delco VS Duralast battery, there are a few key factors that you should keep in mind.

In this article, we try to share a comparison between these two batteries and make a decision which is the best to pick. Hopefully, this small effort will be helpful for all of you. Thank you all.


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