3 best automotive replacement batteries

Automotive replacement batteries are essential components in vehicles, providing electrical power to start the engine, operate various electrical systems, and store energy for use when the engine is not running. Here are key points about automotive replacement batteries:

Purpose: Automotive batteries serve as the primary source of electrical power for a vehicle.They supply the necessary voltage and current to start the engine by engaging the starter motor, power the vehicle's lights, accessories, and electronics, and provide electrical stability when the engine is not running.
Types of Automotive Batteries:
- Lead-Acid Batteries: Traditional lead-acid batteries are commonly used in most vehicles. They come in two main types:
  - Flooded Lead-Acid Batteries: These require periodic maintenance, including adding distilled water to maintain electrolyte levels.
  - Maintenance-Free Lead-Acid Batteries: Sealed lead-acid batteries that do not require maintenance.
- AGM (Absorbent Glass Mat) Batteries: AGM batteries are a type of sealed lead-acid battery with advanced technology. They are maintenance-free and provide higher performance and durability. They are often used in modern vehicles.
- Lithium-Ion Batteries: These batteries are becoming increasingly popular in hybrid and electric vehicles due to their high energy density and lighter weight. They are also used in some conventional vehicles for specific applications.
Cold Cranking Amps (CCA): CCA is a critical specification for automotive batteries. It measures the battery's ability to deliver power in cold temperatures, which is crucial for starting the engine in cold climates.
Reserve Capacity (RC): RC indicates how long a battery can power essential electrical systems if the alternator fails. It's an important consideration for emergency situations.
Battery Group Size: Batteries come in various group sizes, which determine their physical dimensions and terminal placement. It's essential to choose a battery that fits your vehicle's specifications.
Installation: Proper installation of an automotive replacement battery is crucial to ensure it functions correctly and safely. Terminals must be securely connected, and the battery should be secured in place to prevent movement.
Battery Life: The lifespan of an automotive battery varies depending on factors such as usage patterns, climate, and maintenance. On average, a typical lead-acid battery may last around 3 to 5 years, while AGM and lithium-ion batteries can last longer.
Maintenance: Maintenance-free batteries require little to no maintenance, while traditional flooded lead-acid batteries may need periodic checks and water refilling.
Recycling: Automotive batteries are recyclable, and recycling programs exist to dispose of old batteries responsibly. It's important to recycle old batteries to prevent environmental harm.
Testing: If you suspect a battery issue, various testing methods, such as a load test or voltage measurement, can help determine its condition. Many auto parts stores and service centers offer battery testing services.

In summary, automotive replacement batteries are vital components that provide electrical power to vehicles. Choosing the right type and size of battery, as well as proper installation and maintenance, are essential for ensuring reliable vehicle operation and electrical performance.

Below you can find our editor's choice of the best automotive replacement batteries on the market

ACDelco ACDB24R Advantage AGM Automotive BCI Group 51 Battery

ACDelco

Based on 795 reviews Check latest price

Product description

Battery

Note: Refer a user manual before use
Durable design protects against the worst enemy of a truck battery – road vibration (compared to standard flooded batteries)
Calcium alloy is optimized to produce a fine grain, corrosion-resistant grid, maximize cycle life and minimizes water consumption for battery durability
Fully charged ACDelco Batteries (OCV is >12.5) should be stored in an upright position at temperatures between 32°F and 70°F. When a battery is stored, a very slow chemical reaction takes place between the plate materials and the electrolyte, causing a slow discharge. This reaction, called a self-discharge, occurs more rapidly at higher temperatures. Therefore, it is not recommended to store next to a furnace or other heat source. If an ACDelco Battery is completely discharged, the electrolyte will freeze when stored below 30°F. To prevent electrolyte freezing and battery damage, do not store ACDelco Batteries below 30°F if their OCV is less than 12.5 volts. Check battery every 2 months and maintain a voltage of 12.4 volts or higher

User questions & answers

Question:	Does this battery ship charged? Can it go straight from Shipping into the car without any charging
Answer:	You should ALWAYS charge a battery before installing it. Most are delivered below 100% charged. You need to use a microprocessor based smart charger that is capable of charging an AGM battery! Do not charge an AGM (absorbed glass mat) battery with a traditional SLI (starting lighting & ignition) lead acid battery charger. Batteryminder has a very affordable smart charger that will safely charge AGM and SLI. Batteryminder model 1500. Good luck
Question:	Will this fit a 2009 prius without modifications
Answer:	I bought this battery because the previous response to fitting on a 2009 Prius. It does NOT fit in my 2009 Prius- it is 1.5 inches too long. I am hoping to return it.
Question:	Is this battery fits in 2008 smart key prius
Answer:	This is a perfect fit for a 2008 Toyota Prius. I installed it a couple of weeks ago and it has performed fine. It seems like the car's fuel economy went up a little also. I watched a couple of videos online that showed installation of battery and would recommend that if your during a self installation.
Question:	What is a smart key
Answer:	A Prius equipped with smart key entry sends out a radio signal looking for a remote key. When you approach your car with the remote on you the car senses it and allows you to open the doors and start the car with out a key. This is important for the battery because, unless you disable it, the car transponder runs constantly and you need a deep discharge battery. It is recommended that you disable smart key if you are parking longer than a couple days to avoid depleting the 12 volt battery. The disable switch is on the dash below the steering column. This is fully described in the owners manual.

Product features

True GM Original Equipment and More

ACDelco is the true General Motors Original Equipment parts brand, infusing a century of experience, innovation and quality into more than 90,000 GM OE and other parts.

Original Down To Our Blueprint

ACDelco parts appear in more than 2 million GM vehicles each year, which makes us the only GM parts brand to offer the same Original Equipment parts shipped for GM vehicle production.

A Professional Choice

ACDelco PROFESSIONAL parts are manufactured to meet expectations for fit, form and function, offering high quality and great value.

The ACDelco Advantage

Our ADVANTAGE parts provide a competitively priced, yet quality alternative to unbranded aftermarket components.

It's Our Specialty

ACDelco gold-label SPECIALTY parts are engineered to OE expectations for exceptional applications that require enhanced performance, including police vehicles.

ACDelco Batteries

When reliable starting power is a priority, ACDelco Batteries are the answer. Whether the application is automotive, industrial, marine or recreational, with its Professional, Advantage, Voyager and Heavy-Duty offerings, ACDelco has a battery to meet virtually any need. Laboratory-tested, field-proven and backed with outstanding warranty coverage, ACDelco Batteries set the standard for performance.

ACDelco Batteries

Our most common Parts Warranty offers coverage on the majority of our Genuine GM Parts and ACDelco service replacement parts.

Effective on parts purchased April 1, 2018, and later to the original retail purchaser. Contact seller for limited warranty part details, qualifications, and possible labor coverage.

ACDelco 48AGM Professional AGM Automotive BCI Group 48 Battery

ACDelco

Based on 202 reviews Check latest price

Product description

ACDelco Professional Automotive AGM Batteries have high cycling capabilities, are remarkably charge-receptive, and are necessary for ‘start/stop’ vehicle applications. The Absorbed Glass Mat design is 100% leak and spill proof because the Electrolyte is permanently held in the glass mat separator instead of free flowing within each cell. Oxygen recombination reduces water loss and reassures maintenance-free performance. ACDelco Professional Automotive AGM Batteries have longer life expectancy in traditional vehicle applications, due to a maintained pressure on the plates which significantly reduces the amount of active mass lost from the grid. ACDelco Professional Automotive AGM Batteries also have a 36 month Free Replacement Period. PROPOSITION 65 WARNING: Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. Batteries also contain other chemicals known to the State of California to cause cancer. Wash hands after handling

High density negative paste, improves performance and increases battery life
Enhanced life alloy/Silver Calcium stamped alloy increases cycle life and improves performance
Calcium lead positive grid, maximizes conductivity and allows for low resistance
Robust envelope separator with puncture resistant back, allows for increased acid circulation and prevents shorts. Improved acid circulation, helps the battery to remain cool, and extend battery life
Vent cap design that resists acid leakage

User questions & answers

Question:	is this the correct battery for a BMW Z
Answer:	How could I know? I don't own a BMW
Question:	will this battery fit a 2006 toyota tacoma v6 4 door 2 wheel drive? Thank you all
Answer:	Sorry it will not fit. Your Toyota takes a group 24F and this is a Group 48.
Question:	Is it also a replacement for a AC Delco OE
Answer:	I have a 2007 Chevy Silverado LT LMM 6.6 with two of the 8542's, I now have two of these AGM batteries installed and they are great! Took a couple days of driving around for the meter to finally settle into it's old charged spot, but they are a perfect fit.
Question:	Is this a replacement for a 7641 OEM battery
Answer:	Not sure about that but it's was a upgraded replacement for my 2010 escalade

Product features

True GM Original Equipment and More

ACDelco is the true General Motors Original Equipment parts brand, infusing a century of experience, innovation and quality into more than 90,000 GM OE and other parts.

Original Down To Our Blueprint

ACDelco parts appear in more than 2 million GM vehicles each year, which makes us the only GM parts brand to offer the same Original Equipment parts shipped for GM vehicle production.

A Professional Choice

ACDelco PROFESSIONAL parts are manufactured to meet expectations for fit, form and function, offering high quality and great value.

The ACDelco Advantage

Our ADVANTAGE parts provide a competitively priced, yet quality alternative to unbranded aftermarket components.

It's Our Specialty

ACDelco gold-label SPECIALTY parts are engineered to OE expectations for exceptional applications that require enhanced performance, including police vehicles.

ACDelco Batteries

ACDelco offers a 3 year/Unlimited Mile limited warranty on batteries.

Effective on parts purchased April 1, 2018, and later to the original retail purchaser. Contact seller for limited warranty part details, qualifications, and possible labor coverage.

ACDelco 94RAGM Professional AGM Automotive BCI Group 94R Battery

ACDelco

Based on 209 reviews Check latest price

Product description

ACDelco Professional Automotive AGM Batteries have high cycling capabilities, are remarkably charge-receptive, and are necessary for ‘start/stop’ vehicle applications. The Absorbed Glass Mat design is 100% leak and spill proof because the Electrolyte is permanently held in the glass mat separator instead of free flowing within each cell. Oxygen recombination reduces water loss and reassures maintenance-free performance. ACDelco Professional Automotive AGM Batteries have longer life expectancy in traditional vehicle applications, due to a maintained pressure on the plates which significantly reduces the amount of active mass lost from the grid. ACDelco Professional Automotive AGM Batteries also have a 36 month Free Replacement Period. Proposition 65 Warning: Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. Batteries also contain other chemicals known to the State of California to cause cancer. Wash hands after handling

High density negative paste, improves performance and increases battery life
Enhanced life alloy/Silver Calcium stamped alloy increases cycle life and improves performance
Calcium Lead positive grid, maximizes conductivity and allows for low resistance
Robust Envelope Separator with puncture-resistant back, allows for increased acid circulation and prevents shorts. Improved acid circulation, helps the battery to remain cool, and extend battery life
Vent cap design that resists acid leakage
Note: Refer a user manual before use

User questions & answers

Question:	serves a jeep grand cherokee 2012 , is located under the passenger seat
Answer:	Yes this is the correct battery.
Question:	will this fit a 2010 Marcedes E350 Coup? I measured my existing battery and its 12 inch, but the checker above says it wont fit
Answer:	If the dimensions are correct, and the terminals are on the right side, then get it. Go to AC Delco's website to verify the dimensions....the Amazon Checker said it would fit my vehicle, but it didn't.
Question:	Is this the correct battery for a 2010 challenger srt8? is it stronger than the stock chrysler battery
Answer:	It is the correct size and is just slightly stronger than the spec listed for the Chrysler (mopar) battery.
Question:	Is the CCA in the picture accurate to the actual battery
Answer:	Yes, the battery I received looked just like the picture with 800 CCA. Other batteries that I looked at similar to this one were very close to 800 CCA and 1000 CA (couldn't find the CA for this battery anywhere in the description on Amazon and on AC/Delco's webpage). I've had it a week and so far, it's doing fine.

Product features

True GM Original Equipment and More

ACDelco is the true General Motors Original Equipment parts brand, infusing a century of experience, innovation and quality into more than 90,000 GM OE and other parts.

Original Down To Our Blueprint

ACDelco parts appear in more than 2 million GM vehicles each year, which makes us the only GM parts brand to offer the same Original Equipment parts shipped for GM vehicle production.

A Professional Choice

ACDelco PROFESSIONAL parts are manufactured to meet expectations for fit, form and function, offering high quality and great value.

The ACDelco Advantage

Our ADVANTAGE parts provide a competitively priced, yet quality alternative to unbranded aftermarket components.

It's Our Specialty

ACDelco gold-label SPECIALTY parts are engineered to OE expectations for exceptional applications that require enhanced performance, including police vehicles.

ACDelco Batteries

ACDelco offers a 3 year/Unlimited Mile limited warranty on batteries.

Effective on parts purchased April 1, 2018, and later to the original retail purchaser. Contact seller for limited warranty part details, qualifications, and possible labor coverage.