What Are You Working On Today?

Add your vehicle to get an exact fit

Duralast Platinum AGM Battery 51R / Group Size SAE - Type A 51R-AGM

Part #
51R-AGM
Regular Price
Total price is: 259 dollars and 99 cents..
Refundable Core Charge
+$22.00

Regular Price Plus Core

$281.99
quantity
Specifications:
Warranty:
4 Year Warranty
Part Number:
51R-AGM
SKU Number:
229893
Battery Technology:
Absorbed Glass Mat (AGM)
Features:
  • Precision engineered to exceed OE specifications
  • Superior starting power for all climates
  • Vehicles with startstop & high electrical demand
  • 2 times the life of conventional batteries
  • Vibration resistance with SPILL-PROOF, AGM design
Warranty
Part #51R-AGM
SKU #229893
Battery TechnologyAbsorbed Glass Mat (AGM)
Weight29.4lb
Height8.75in
BCI Group Size51R
Reserve Capacity45min
Cranking Amperage540A
Voltage12VDC
Terminal TypeSAE - Type A
Battery TypeAutomotive
Negative Terminal LocationTop Left Front
Width5.06in
Length9.38in
Cold Cranking Amperage435A
Positive Terminal LocationTop Right Front
Product Bulletins
Duralast Platinum AGM (Absorbent Glass Mat) Batteries are designed to give you the ultimate combination of power, durability, and flexibility. These batteries are engineered to meet or exceed the performance of your original AGM battery. Delivering maximum cold cranking amps and reserve capacity, Duralast Platinum AGM batteries provide increased, spill-proof power to vehicles with multiple electronic features and accessories like cruise control, lane assist, infotainment systems, and heated seats. In vehicles designed for AGM Automotive batteries, Duralast Platinum AGM Batteries meet or exceed your original equipment for premium performance and are backed by a 4-year, free replacement, nationwide warranty.
  • 2x times the cycle life of conventional batteries
  • Leak proof and certified non-spillable design for safer maintenance-free power
  • Cycles more and recharges faster than conventional batteries
  • Advanced technology specially designed for vehicles with start-stop technology and accessories that demand greater power
  • Constructed for greater vibration resistance and enhanced durability
  • Delivers superior starting power in cold weather and resists internal corrosion from heat
From the Brand
Duralast Platinum Elite - AGM Technology. Elite power designed for you vehicle.
Duralast Platinum Elite AGM Battery
Duralast Platinum AGM Battery
Duralast Gold Battery
Duralast Battery
Vehicle Type
Modern vehicles with start-stop technology and/or high electrical demands
Modern vehicles with high electrical demands
Conventional vehicles with standard to high electrical demands
Conventional vehicles with standard electrical demands
Free Installation
Yes
Yes
Yes
Yes
Starting Power
Superior
Superior
Improved
Standard
Extreme Temperature Performance
Elite
Superior
Improved
Standard
Vibration Resistance
Elite
Superior
Improved
Standard
Power for Features and Accessories
Elite
Superior
Improved
Standard
Cycle Life
Elite
Superior
Standard
Standard
Lifespan
3x
2x
1x
1x
Maintenance Free
Yes
Yes
Yes
Yes
Replacement Warranty
5 Years
4 Years
3 Years
2 Years
Original Equipment (OE) Comparison
Recommended replacement for vehicles with advanced electronics
Recommended replacement for vehicles with advanced electronics
Meets and/or exceeds OE quality
OE-matched quality

KNOWLEDGE IS POWER

Most car batteries last 3-5 years. If your battery is 4 years old or older, it is at higher risk for failure. One out of every four vehicles on the road will likely need a new battery this year.
Cold cranking amps measures your battery's ability to start an engine. The specific measurement is the amount of amps delivered over 30 seconds at 0°F. High cold cranking amps give you a rough indication of a battery's starting power in difficult conditions.
Reserve capacity refers to the amount of time (in minutes) a battery can provide power before being fully discharged. High reserve capacity is especially important for modern vehicles with accessories like heated seats and infotainment systems.

RELATED ARTICLES

BATTERY NOT WORKING?
Don’t panic. Follow these steps and you’ll be back on the road shortly.
READ NOWBATTERY NOT WORKING? opens in a new window
HOW TO JUMP START A CAR BATTERY
A quick jump can get you to an AutoZone or a professional shop for service. Make sure you do it safely.
READ NOWHOW TO JUMP START A CAR BATTERY opens in a new window
HOW TO REPLACE A CAR BATTERY
Here’s a step-by-step guide to battery replacement, with how-to videos for replacing both top-post and side-post batteries.
READ NOWHOW TO REPLACE A CAR BATTERY opens in a new window

FREE BATTERY SERVICES AT AUTOZONE

FREE TESTING
We’ll help you make sure you find the right problem.
READ NOWFREE TESTING
FREE CHARGING
We may be able to bring a dead battery back to life.
READ NOWFREE CHARGING
BATTERY RECYCLING
It pays to recycle. Bring in your old battery for core credit, even if you aren’t buying a new one.
READ NOWBATTERY RECYCLING
583 Ratings
92% of reviewers recommend this product.
Customer Images
Review Summary
The Duralast batteries provide reliable performance and long-lasting power. Customers praised the quick start-up and smooth operation of the batteries. While some noted the higher price, most felt the quality and warranty justified the cost.
AI-generated from the text of customer reviews
Looking for something specific?
  • Sort By
  • Filter by
Show reviews that mention
373 Reviews
  • Needed for subwoofers

    Devon
    2 days ago
    Verified Purchase
    when I first got my car it went over my head about the battery and blew the amps out of the battery, when I put this AGM battery in and immediately started maxing the subwoofers it has yet to disappoint me.

    Helpful?

  • MARK
    3 days ago
    Verified Purchase
    So far so good. Time will tell. The staff was great and got to me quickly and was very knowledgeable. Will use this location again.

    Helpful?

  • MICHAEL
    3 days ago
    Verified Purchase
    Recommended
    Great Battery replacement
    Purchased for: 2019 Honda Civic

    Helpful?

  • Fits my car

    Dave B
    3 days ago
    Verified Purchase
    Have no idea how it will respond to hot desert conditions
    Purchased for: 2019 Honda HR-V

    Helpful?

  • They can’t even get a order right

    Got someone elses order
    4 days ago
    Verified Purchase
    Never got the correct order

    Helpful?

  • Anonymous
    8 days ago
    Verified Purchase
    Great replacement battery for 2011 Honda CRV. The 4 year warranty is the best I could find. Store replaced free. Could not be happier.

    Helpful?

  • Excellent

    Auto
    8 days ago
    Verified Purchase
    Strong lasting battery

    Helpful?

  • Duralast platinum battery

    Abraham
    9 days ago
    Verified Purchase
    Recommended
    Very good battery 4 years warranty
    Purchased for: 2008 honda crv

    Helpful?

  • Battery

    MARICELA
    9 days ago
    Verified Purchase
    Recommended
    Car is running smoothly and when I turn on my car it immediately takes. Good biy
    Purchased for: 2017 Honda Accord

    Helpful?

  • JIM
    9 days ago
    Verified Purchase
    Perfect replacement. Great staff

    Helpful?

  • ROBERT
    9 days ago
    Verified Purchase
    good battery. easy install(they did it for me). even added the grease.
    Purchased for: 2008 Mazda MX-5 Miata

    Helpful?

  • OEM perfect fit

    FloppyHoppy
    10 days ago
    Verified Purchase
    So far so good. It's only been about two weeks but it works fine, fits perfectly and hopefully lasts for years.
    Purchased for: 2019 Honda Civic

    Helpful?

  • RON
    13 days ago
    Verified Purchase
    Recommended
    This is a very good product.
    Purchased for: 2003 Honda Civic

    Helpful?

  • Great service, Best battery with longest warranty

    Aubree F.
    17 days ago
    Verified Purchase
    Recommended
    The gentleman who assisted me by replacing and installed my battery for me used this item and did a fantastic job. I would not have been able to this on my own so I cannot tell you enough how thankful I am for his kindness, and speed of service even with having 2 people ahead of me. He was awesome! Thank you!
    Purchased for: 2019 Honda civic

    Helpful?

  • Replacement battery

    PAUL
    22 days ago
    Verified Purchase
    Pricy. Very easy install. Engine cranked on first turn. If it lasts for five years with no issues, I’ll give it a five!
    Purchased for: 2012 Mazda MX-5 Miata

    Helpful?

  • VANESSA
    23 days ago
    Verified Purchase
    Completely died 9 months later, there was no way for me to get it back to the store for a replacement, warranty was useless.
    Purchased for: 2006 Honda Truck CR-V 4WD 2.4L FI DOHC 4cyl

    Helpful?

  • Died after a few months

    S.r
    24 days ago
    Verified Purchase
    💩🪦 died on me. I do not recommend this product unfortunately I’m going to rock the replacement since I’ll be getting it for free but down the road it behoves you get something reliable.
    Purchased for: 2005 Acura RSX Type-S 2.0L MFI DOHC VTEC 4cyl

    Helpful?

  • Poor

    Sunny
    24 days ago
    Verified Purchase
    Battery didn't last for a long time
    Purchased for: 2014 Honda civic

    Helpful?

  • New AGM battery

    Spdtech
    27 days ago
    Verified Purchase
    Recommended
    Works great and I can notice the additional cold cranking amps.
    Purchased for: Acura TSX

    Helpful?

  • Warranty issues

    VICTOR
    28 days ago
    Verified Purchase
    Gave me a hard time giving me a new battery even though I have warranty. The clerk told me because autozone could not see the original purchase price of the battery I bought with warranty, therefore, they could not replace it with a new battery. I was sent to another location where there was a manager that could help me. Thank you to the night shift manager at 9457 Foothill Blvd in Rancho for finally helping me after hours of dealing with that.
    Purchased for: 2019 Honda HR-V

    Helpful?