7 Best AC Delco Battery Review & A Comprehensive Buying Guide 2021

One of the nightmares that you don’t want to experience is to wake up in the morning with a dead car. The reason why your vehicle is not responding is a dead battery.

Keep in mind; the battery is the soul of your car. It provides power to operate the lights, windows, door locks, and other accessories. So make sure you invest in the right brand.

AC Delco is one of the most popular brands of car battery these days, and this article will tell you why. Choosing the right type of battery can be confusing, so we decided to write this AC Delco battery review to help you.

Don’t expect your car batteries to last forever. No matter how good quality your car battery is, and it does not matter how well you maintain, the batteries won't last forever.

You will have to replace your car battery twice throughout your vehicle’s lifetime. But, make sure you purchase an excellent product that will last longer. Included in this review are the AC Delco battery specifications to help you decide.

Best premium

ACDelco 78AGM Professional AGM 

ac delco battery review
  • Dimensions: 10.1 x 6.8 x 7.2 inches
  • Weight: 37.8 lbs.
  • Cranking Amps: 890 CA
best value

ACDelco 34AGM Professional AGM 

  • Dimension 10.1 x 6.7 x 7.5 inches
  • Weight: 35.5 lbs
  • Cranking Amp 890 CA

There are lots of reasons why you should choose ACDelco, and we have mentioned some of them below.

ACDelco Sealed Maintenance Free Batteries has lead calcium expanded grids for better resistance to corrosion, water usage, and thermal runaway, overcharging, gassing, and self-discharge. These things restrict battery life in traditional lead-acid car batteries.

This battery has suit starting, dual-purpose starting, high cycle, and deep cycle applications. It has inbuilt hydrometer that indicates the state of charge. ACDelco car batteries are maintenance-free.

It has a polypropylene case with reinforced design to support the battery elements to withstand vibration and road shock. The batteries are made of durable material, which makes it lightweight and robust.

Another essential feature which makes it an excellent choice is its liquid-gas separator. The liquid returns to the reservoir to extend its lifespan.

You will be impressed with its rope handle feature for easy transport and installation. It is very durable because of its heat-sealed covers that prevent electrolyte contamination.

The ACDelco car batteries are recommended because of its flame arrestor feature. This feature prevents an explosion from sparks outside the battery, prevents the inflow of dust, and reduces acid leakage.

Its gas-burned connectors are sturdier than thinner traditional connectors. It has encapsulated negative plates to prevent shorting between positive and negative plates and help in vibration durability. The shelf life is up to 12 months without charging because it uses calcium/calcium grids.

If you are a bike lover and own a car, you should definitely check out the best bike racks for vehicles. In our reviews, we have made a comparison on 11 models favourite by users.

7 Best AC Delco Battery Review (Table Of Car Battery Comparison)

This product review will focus on the AC Delco car batteries. This brand is well-known in Dubai and other parts of the world. We have chosen seven popular models under this brand.

The table below shows the summarized of comparison of the best AC Delco Battery review for your easy reference. However, the positions are in no particular order of importance on top rated AC Delco Battery review.



Our Rating

1. ACDelco ACDB24R Advantage AGM 
(Our Top Pick)
  • Dimensions: 18.5 x 11.4 x 9.5 inches
  • Weight: 29.11 lbs.
  • Cranking Amperage: 390
  • Reserve Capacity: 70 minutes


4.9 / 5.0

Price : $ $

2. ACDelco 49AGM Professional AGM
  • Dimensions: 13.9 x 6.9 x 7.5 inches
  • Weight: 58.6 lbs.
  • Cranking amps: 1080 CA
  • Reserve Capacity: 160 minutes

4.7 / 5.0

Price : $ $ $

3. ACDelco 34AGM Professional AGM
  • Dimension 10.1 x 6.7 x 7.5 inches
  • Weight 35.5 lbs
  • Cranking Amp 890 CA
  • Reserve Capacity 115 minutes

4.3 / 5.0

Price : $ $ $

4. ACDelco 78AGM Professional AGM
  • Dimensions: 10.1 x 6.8 x 7.2 inches
  • Weight: 37.8 lbs.
  • Cranking Amps: 890 CA
  • Reserve Capacity: 115 minutes

4.3 / 5.0

Price : $ $ $

5. ACDelco 47AGM Professional AGM
  • Dimension: 9.5 x 6.9 x 7.5 inches
  • Weight: 39.5 lbs.
  • Cranking Amps: 750 CA
  • Reserve Capacity: 100 minutes

4.2 / 5.0

Price : $ $

6. ACDelco 94RAGM Professional AGM
  • Dimension: 12.4 x 6.9 x 7.5 inches
  • Weight: 51.6 lbs.
  • Cranking Amps: 1020 CA
  • Reserve Capacity: 140 minutes

4.2 / 5.0

Price : $ $

7. ACDelco 48AGM Professional AGM
  • Dimensions: 10.9 x 6.9 x 7.5 inches
  • Weight: 45.6 lbs.
  • Cranking Amps: 880
  • Reserve Capacity: 120 minutes

4.1 / 5.0

Price : $ $

Top 7 Best AC Delco Battery Review On The Market 

1. ACDelco ACDB24R Advantage AGM Battery

This ACDelco ACDB24R Advantage Group 51 Battery is probably one of the best car batteries brand has to offer.

ACDelco’s AGM car batteries have high cycling capabilities, with impressive charge-receptive, and are essential for start/stop vehicle applications.

The AGM designs are 100% leak and spill-proof as the electrolyte is held permanently in the glass mat separator instead free-flowing in each cell. The brand offers the 36-month Free Replacement Period.

Utilizing the gas recombinant technology controlled by a valve provides 3x the life cycle of the standard auto batteries.

This feature will give improved cranking amps, and reduced auto discharging rate for off-season storage.

This battery has a full-frame power path grids. It has a leak-proof pressurized valve system for extended life and safety and in preventing dry-out.

This system can also protect the battery from getting damaged by acid to the battery terminals.

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  • Amp Hour: 45 Ah
  • Cranking Amperage: 390
  • Item Weight: 29.11 Lbs.
  • Product Dimensions: 18.5 X 11.4 X 9.5 Inches
  • Reserve Capacity: 70 Minutes
  • Warranty: 24 Months Free Replacement On Parts


  • Maintenance-free performance
  • Easy to install
  • Safest batteries
  • 100% leak and spill-free
  • Affordable


  • It works best only in recommended for Toyota Prius.

2. ACDelco 49AGM Professional AGM BCI Group 49 Battery

The power source of every car is the battery. It supplies the power to every part of your vehicle that requires electricity to work. One of the most popular models of AC Delco is the 49AGM Professional Automotive. This AC Delco battery has the highest density negative paste that is vital in improving battery performance.

It increases the life of the battery because of its enhanced life Alloy or the Silver Calcium stamped alloy. Aside from that, the calcium led positive grid can benefit from the conductivity, and it can allow low-resistance.

The battery has robust envelope separator with a puncture-free back that increases acid circulation. Thus, it helps in preventing shortages and can keep the battery cold. Therefore, it can extend the life of the battery.

A 36-month free replacement period is being offered. Thus, this series of car batteries is ideal when a replacement battery is required.

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  • Ampere: 95 Ah
  • Cold Cranking Amps: 900 CCA
  • Cranking Amps: 1080 CA
  • Dimensions: 13.9 X 6.9 X 7.5 Inches
  • Positive Position: Right Hand
  • Reserve Capacity: 160 Minutes
  • Voltage: 12 V
  • Warranty: 36 Months
  • Weight: 58.6 Lbs.


  • With 36-month free replacement
  • Easy to use
  • It fits several Asian and European cars from BMW, Hyundai, Mercedes Benz, and Audi.
  • 100% leak and spill-free
  • Last longer


  • Hard to install, it requires professional assistance.

3. ACDelco 34AGM Professional AGM BCI Group 34 Battery

The ACDelco 34 AGM Professional Battery has enhanced life alloy/silver calcium stamped alloy that boosts the cycle life and enhances performance. It has calcium lead positive grid that allows low-resistance and maximizes conductivity.

The battery has a high-density negative paste that increases battery life and improves performance.

Its vent cap design resists acid leakage. Sturdy envelope separator with puncture-free back, to increase acid circulation and prevents shorts. Better acid circulation can keep the battery cool and lengthen battery life.

You can use this battery in any applications like an industrial, recreational, automotive or marine.

With its Advantage, Heavy-Duty, Professional, and Voyager models, ACDelco has a battery that meets the requirement of the most vehicle. 

It is laboratory tested, backed with impressive warranty coverage, field-proven and it has set the standard for performance. When reliable starting power is a priority, ACDelco Car Batteries are the answer.

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  • Ampere: 60 Ah
  • Cold Cranking Ampere 740 CCA
  • Cranking Amp 890 CA
  • Dimension 10.1 X 6.7 X 7.5 Inches
  • Positive Position Left Hand
  • Reserve Capacity 115 Minutes
  • Voltage 12 V
  • Warranty 36 Months
  • Weight 35.5 Lbs


  • Vent cap design
  • Calcium lead positive grid
  • High-density negative paste
  • Sturdy envelope separator


  • Similar products are cheaper.

4. ACDelco 78AGM Professional AGM automotive battery

If you are looking for a quality car battery that will last longer, you can consider buying ACDelco Professional Battery. It comes with a high-density negative paste that can help in improving battery performance and increase its lifespan.

With the use of alloy/silver calcium, the lifespan and performance are further enhanced.

Increased acid circulation and short-circuiting have been increased significantly by the use of a sturdy envelope separator with puncture-resistant back.

It keeps the battery cool and improves battery performance as it increases the lifespan.

Leakages are prevented because of its vent cap design, and it keeps the acid intact even when subjected to vibrations. As a whole, this is a good car battery with good reviews online and one that you can purchase with confidence.

This brand has been a favorite of automobile lovers and gearheads who accessorize their cars with high-end sound systems. It has scored well with 95-minute reserve capacity and 720 CCA. This ACDelco has built-in Green Eye hydrometer.

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  • Ampere: 60 Ah
  • Cold Cranking Amps: 740 CCA
  • Cranking Amps: 890 CA
  • Dimensions: 10.1 X 6.8 X 7.2 Inches
  • Positive Position: Left Hand
  • Reserve Capacity: 115 Minutes
  • Voltage: 12 V
  • Warranty: 42 Months
  • Weight: 37.8 Lbs.


  • Puncture resistant back
  • 36-month free replacement in case there is defects
  • Has high scoring both on CCA and reserve capacity
  • Has vent cap design to prevent leakage
  • Protected against vibration


  • It is not suitable for small and medium-size vehicles.
  • The battery is not environment-friendly.

5. ACDelco 47AGM Professional AGM automotive battery

The ACDelco 47AGM car battery is designed to meet the expectations of car enthusiasts when it comes to form, fit, and function. This brand is a good quality battery with high-cycling capabilities and is highly charge-receptive. Overall it meets or even exceeds all OE specifications.

This car battery is ideal if you need a car battery replacement that features AGM design. It is leak and spill-proof. Because of its maintained pressure on the plates, the quantity of active mass lost during the grid is reduced. This battery has a longer life expectancy as compared to others with the same price.

With its robust envelope separator and puncture-resistant back that allows increased air circulation, the battery remains cool and safe. It is 100% pressure and electrical short tested for optimum safety.

ACDelco Professional is the best choice when it comes to a replacement battery. This battery exceeds the Original Equipment specifications.

It is maintenance-free, designed to resist corrosion, pressure tested against leaks, and is backed with impressive warranty coverage. It sets the standard for performance.

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  • Ampere: 60 Ah
  • Cold Cranking Amps: 630 CCA
  • Cranking Amps: 750 CA
  • Dimension: 9.5 X 6.9 X 7.5 Inches
  • Positive Position: Right Hand
  • Reserve Capacity: 100 Minutes
  • Voltage: 12 V
  • Warranty: 36 Months
  • Weight: 39.5 Lbs.


  • Maintenance-free
  • Meets all OE expectations
  • Has 630 CCA
  • Longer battery life
  • Leak and spill-proof


  • It contains a chemical that could be harmful to your health.

6. ACDelco 94RAGM Professional AGM automotive battery

An all-around battery. It is designed and manufactured to provide a high level of performance and last longer. Just like other ACDelco car batteries, it is leak-proof, thanks to its absorbed glass design.

Rather than allowing free flow within the cells, it holds the electrolyte permanently within the glass mat separator. Its vent cap is resistant to acid leaks.

This battery has oxygen recombination that minimizes water loss. Help maintain its performance without the need for maintenance. It last longer as well.

Every car owner knows that AGM car batteries usually last longer than traditional batteries. Its because it can maintain pressure on the plates that minimizes the amount of active mass the grid loses.

The grid is made from calcium lead that allows low resistance improving conductivity. Likewise, extending the battery life and providing much-needed cooling is the improved acid circulation.

This battery is compatible with the vehicles like BMW, Ford, Aston Martin, Cadillac, Hyundai, Land Rover, Volvo, BMW, Mini, Volkswagen, Jaguar, GMC, Chevrolet, Ram, Kia, and others.

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  • Ampere: 80 Ah
  • Cold Cranking Amps: 850 CCA
  • Cranking Amps: 1020 CA
  • Dimension: 12.4 X 6.9 X 7.5 Inches
  • Positive Position: Right Hand
  • Reserve Capacity: 140 Minutes
  • Voltage: 12 V
  • Warranty: 36 Months
  • Weight: 51.6 Lbs.


  • High-level of conductivity
  • Leak-proof even to acid
  • Requires less to no maintenance
  • Last longer as compared to standard batteries


  • Contains harmful chemicals that can cause serious problems

7. ACDelco 48AGM Professional AGM 

ACDelco 48AGM Professional is designed to give your vehicle a good start without glitches or maintenance required. It applies AGM technology to obtain lengthy cycling capabilities and is highly charge receptive.

The glass mat separator held the electrolyte permanently instead of letting it flow freely within each cell.

Thus, making it leak and spill-free. With its oxygen recombination, the water loss is reduced. It also makes the battery maintenance-free.

When it comes to longevity, this battery can last longer. The active mass loss in the grid is reduced because of its constant pressure maintained in each plate.

As a result, the battery may last longer as compared to a regular battery. It offers 36-month battery replacement if needed. This AC Delco battery warranty is available to all their car batteries.

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  • Ampere: 70 Ah
  • Cold Cranking Amps: 760 CCA
  • Cranking Amps: 880
  • Dimensions: 10.9 X 6.9 X 7.5 Inches
  • Positive Position: Right Hand
  • Reserve Capacity: 120 Minutes
  • Voltage: 12 V
  • Warranty: 36 Months
  • Weight: 45.6 Lbs.


  • The battery lasts longer as compared to traditional batteries.
  • Applies AGM technology
  • Long cycling capabilities
  • The battery comes with a good insurance plan.
  • It does not require maintenance.


  • Contains harmful substances

FAQs – Frequently Asked Questions

1) How to read the date code on the AC Delco battery? 

You will find the warranty date code on the top label of the battery. P or S is the first character. The succeeding two digits will represent the month, the next number is the year, and the fourth is the manufacturing plant. For instance, P 094N, which means it was manufactured in September 2014.

2) What is not included in the AC Delco 36 month warranty?

Almost all of the ACDelco batteries offer a 36-month limited warranty period. However, there is an exemption. The warranty does not cover damages due to negligence, improper installation, charging system failure, accident, freezing, or abuse.

3) How long does a Diehard battery last?

Majority of northern US batteries has an average shelf life of 56 months. Those manufactured in the south has an ordinary life of 43 months. If you are driving most of the time in places with cold climates, choose the lead-acid batteries.

This type of battery is not recommended in warm climates as it increases water loss and sulfation — the car battery lifespan range from 2 to 5 years.

4) What is more critical, CCA, or Reserve Capacity?

The Cold Cranking Amps test is the needed amps to crank an engine for thirty seconds at zero degrees Fahrenheit. Because of gear reduction starters, smaller motors, and low viscosity engine oil having the right amount of Cold Cranking Amps is needed but not too much. Getting more CCA will not start up your car quickly.

The Reserve Capacity test, on the other hand, is the time a battery will last with the headlights on or at 25 amp draw. With the increased of major and minor electronics in a vehicle, Reserve Capacity is more vital as compared to having too much CCA.


Choosing an ACDelco battery for your vehicle is a good move. The brand is known for quality batteries that last longer. In buying the battery, you need to evaluate the power your car needs by getting to know your engine.

After reviewing the above ACDelco batteries, we find 49AGM Professional AGM Automotive BCI Group 49 Battery as the best. It has high CCA and Reserve Capacity, which is needed by most vehicles today.

Make sure the battery is just enough for your engine not over or under-powered. In both cases, you will be subjecting your vehicle engines towards utter degradation. Always pick the best car battery for your car.

Don't get victimized by the marketing tactics most car battery sellers do. Choose ACDelco, and you will not regret it.

When buying a battery, keep in mind the different factors we mentioned in this AC Delco battery review. Check the reviews. If it is mostly positive, then go and purchase the product before it goes out of stock.

We hope this AC Delco Battery Review was able to help you find the product that you need. If you find this post helpful, feel free to share this with others.

In the mean time, check out this post if you are looking for radar detector for your automobiles. It is truly a life saviour with a radar detector.

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