Free Battery Testing*. Find your solution fast at AutoZone.

First, Add Your Vehicle

Get an exact fit for your vehicle.
Duralast Battery BCI Group Size 121R 550 CCA 121R-DL
Hover over image to zoom
Hover over image to zoom

Duralast Battery BCI Group Size 121R 550 CCA 121R-DL

Shop All Duralast
Duralast729141https://www.autozone.com/batteries-starting-and-charging/battery/p/duralast-battery-bci-group-size-121r-550-cca-121r-dl/729141_0_0?searchText=550+620
Part # 121R-DL
SKU # 729141
Regular price
Total price is: 204 dollars and 99 cents.
Refundable Core Charge
+$22.00

Regular Price Plus Core

$226.99
This item is unavailable.

PRODUCT SPECIFICATIONS

Warranty
Part #121R-DL
SKU #729141
Weight30.5lbs
Battery TechnologyFlooded
Height8.5in
BCI Group Size121R
Reserve Capacity75min
Cranking Amperage685A
Voltage12VDC
Terminal TypeSAE - Type A
Battery TypeAutomotive
Negative Terminal LocationTop Left
Width7.0in
Length8.25in
Cold Cranking Amperage550A
Positive Terminal LocationTop Right
Product Bulletins

PRODUCT DESCRIPTION

Duralast Automotive Batteries are designed to deliver reliable starting power and performance in severe conditions. Engineered to meet the quality of your vehicle's original equipment (OE), withstand extreme weather, hold up to vibrations, and deliver longer life. Duralast Batteries are Proven Tough and provide durability you can count on for a consistently strong start. Duralast Automotive Batteries are backed by a 2-year, free replacement, nationwide warranty.
  • checkmark
    Meets your vehicle's original cold cranking amps and reserve capacity requirements
  • checkmark
    Durable construction reduces damage from vibration
  • checkmark
    Best-in-class vent caps for safe operation
Duralast Platinum Elite Battery
Duralast Platinum 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 NOW
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 NOW
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 NOW

FREE BATTERY SERVICES AT AUTOZONE

FREE TESTING
We’ll help you make sure you find the right problem.
READ NOW
FREE CHARGING
We may be able to bring a dead battery back to life.
READ NOW
BATTERY RECYCLING
It pays to recycle. Bring in your old battery for core credit, even if you aren’t buying a new one.
READ NOW
Customer Reviews
369 Reviews
90% of reviewers recommend this product.
288 recommendations

Ratings

Customer Images
Review Summary

The battery received generally positive reviews, with many customers praising its performance and reliability. Several noted it started their vehicle reliably, even in cold weather. Some mentioned it was a good value and fit their vehicle properly. However, a few experienced issues with the battery failing prematurely. Overall, the battery is considered a quality product that provides reliable performance, and the customer service was highlighted as excellent.

AI-generated from the text of customer reviews
Looking for something specific?
  • Sort by
  • Filter by
369 Reviews
  • Horrible experience

    Terry
    4 days ago
    Verified Purchase

    There was a terrible elderly man may like 5"8 who worked there that was very rude . I didn't get his name but he had a very strong speaking accent.He told me I didn't understand stand English nor Spanish. I literally came home and cried. I'm diagnosed with Depression and I still think of that day with that man who worked there He has gray hair pretty tall man. If he doesn't love his job in happen to do Customer service then he should find himself another job.

    Purchased for: Kia

    Helpful?

  • Works Great

    Anonymous
    7 days ago
    Verified Purchase
    Recommended

    AutoZone assistant helped install this battery in our 2010 Kia Forte. She was friendly and knowledgeable and we have had no battery problems since.

    Purchased for: 2010 Kia Forte

    Helpful?

  • Good battery

    Charles
    9 days ago
    Verified Purchase
    Recommended

    Battery is great no problem since installation

    Purchased for: Hyundai veloster

    Helpful?

  • Small size battery ti fit

    Rabia B
    19 days ago
    Verified Purchase
    Recommended

    Battery is working great in my Kia soul car

    Helpful?

  • Not competive I would recommend the battery hard t

    Anonymous
    1 month ago
    Verified Purchase

    Your prices are not competitive

    Purchased for: 77 corvette l 82 x

    Helpful?

  • The price was good, the service better...

    Philip M.
    1 month ago
    Verified Purchase
    Recommended

    The employees at the store were professional, polite and very proficient... They knew which battery would work best for my car, and even installed it for me...

    Helpful?

  • Bad experience

    Anonymous
    1 month ago
    Verified Purchase

    I am very disappointed in this product. Had a bad experience when purchase my battery the battery was not in working conditions. I want to know what can be done for my battery replacement

    Purchased for: Kia soul 2016

    Helpful?

  • If they have the parts that your looking for

    Anonymous
    2 months ago
    Verified Purchase

    Very helpful people

    Helpful?

  • That it is a good battery

    Michele
    2 months ago
    Verified Purchase
    Recommended

    Doing Great!!!

    Purchased for: 2009 Hyundai Accent

    Helpful?

  • Good for Chevy Impala and Monte Carlos

    Desmond
    2 months ago
    Verified Purchase

    Good battery

    Purchased for: Chevy Monte Carlo 2007

    Helpful?

  • Not even a week and battery dead

    Daniel
    2 months ago
    Verified Purchase

    Not even a week and battery is dead

    Purchased for: 2016 Kia soul

    Helpful?

  • I would buy it again. Thanks AutoZone!

    Janet
    3 months ago
    Verified Purchase
    Recommended

    Once installed in my Kia Soul I haven't had a single problem with it. No hesitation even during the brutal winter snow and windchill that hit just a few days later.

    Helpful?

  • U can always go to AutoZone

    Auto zone.
    3 months ago
    Verified Purchase
    Recommended

    Had needed a new one battery is doing great

    Helpful?

  • 3 year warranty

    Duralast
    4 months ago
    Verified Purchase
    Recommended

    It’s gonna last

    Purchased for: 2011 Kia

    Helpful?

  • good price good fit

    it was very goooood
    4 months ago
    Verified Purchase

    good price good fit

    Helpful?

  • Battery

    Sarge
    4 months ago
    Verified Purchase
    Recommended

    Best battery on market

    Purchased for: 2014 kia soul

    Helpful?

  • ❤️

    Me
    4 months ago
    Verified Purchase

    Loved being able to start my car even and negative 11 starts every time

    Helpful?

  • Fits replacement needs and works.

    na
    5 months ago
    Verified Purchase
    Recommended

    Fits replacement needs and works.

    Helpful?

  • Great battery!

    Ronny T.
    6 months ago
    Verified Purchase
    Recommended

    This is my 2nd Duralast battery for my 2013 Hyundai Accent. The first one lasted 5 years before a cold snap finally killed it. Very happy with the longevity and reliability!

    Purchased for: 2013 Hyundai Accent GS Hatchback

    Helpful?

  • Works really good. Satisfied

    ATM
    7 months ago
    Verified Purchase
    Sweepstakes Entry

    It work

    Purchased for: 2013 hyundai accent

    Helpful?

*Circana Group, L.P. / Checkout Automotive Tracking, 12 months ending December 2022

**Life of a standard flooded battery