BCI Group Batteries

Everything You Need to Know About Group 43 Batteries

Navigating the world of car batteries can feel like diving into a sea of numbers and specifications. However, if you’re in the market for a reliable and powerful battery, the Group 43 battery is one to consider. Whether you’re familiar with battery group sizes or just starting your search, understanding what makes the Group 43 battery stand out is crucial. From its performance metrics to where you can buy it, this comprehensive guide will cover all you need to know about Group 43 batteries, including the popular 850 CCA model and where to find them, like Walmart.

What Exactly is a Group 43 Battery?

First things first, let’s demystify what a Group 43 battery is. The term “Group 43” refers to a specific size and classification used by the Battery Council International (BCI). This organization standardizes battery sizes to ensure compatibility and performance across different vehicles. Group 43 batteries are designed to fit a variety of car models and provide robust power.

Key Specifications of Group 43 Batteries

When considering a Group 43 battery, you’ll encounter several key specifications that indicate its performance and compatibility:

  • Battery Group Size 43: This refers to the physical dimensions of the battery. Group 43 batteries typically measure around 10.2 inches in length, 6.9 inches in width, and 7.9 inches in height.
  • 850 CCA (Cold Cranking Amps): This metric tells you how well the battery performs in cold temperatures. An 850 CCA rating means the battery can deliver 850 amps for 30 seconds at 0°F without dropping below 7.2 volts, ensuring your vehicle starts even in frigid conditions.

Why Choose a Group 43 Battery?

There are plenty of reasons why drivers opt for Group 43 batteries. Here are some of the most compelling ones:

  • High Cold Cranking Amps: The 850 CCA rating is a standout feature, making this battery ideal for those who live in colder climates or need reliable cold-start performance.
  • Versatile Fit: Its standardized size means it fits a wide range of vehicles, from sedans to light trucks.
  • Durability and Reliability: These batteries are built to last, providing consistent power over a long period.

Where to Buy Group 43 Batteries

When it comes to purchasing a Group 43 battery, you have several options. One of the most convenient places to find these batteries is Walmart. Not only does Walmart carry a variety of Group 43 batteries, but they also offer competitive prices and the convenience of both in-store and online shopping.

Walmart Group 43/24 Battery

You might have seen references to the Walmart Group 43/24 battery. This simply means Walmart stocks both Group 43 and Group 24 batteries, another common size. When shopping at Walmart, make sure to specify that you’re looking for the Group 43 battery to ensure you get the right fit for your vehicle.

Online Retailers

In addition to Walmart, several online retailers offer Group 43 batteries, including:

  • Amazon: Known for its vast selection and customer reviews, Amazon is a reliable source for car batteries.
  • AutoZone: This retailer specializes in automotive parts and has a robust selection of batteries.
  • Advance Auto Parts: Another great option for purchasing car batteries, often with in-store pickup or delivery.

Installing a Group 43 Battery

So, you’ve got your new Group 43 battery, and now it’s time to install it. If you’re comfortable with DIY car maintenance, installing a battery is a relatively straightforward process. Here’s a quick step-by-step guide:

  1. Safety First: Make sure your car is turned off and the keys are out of the ignition. Wear safety gloves and glasses.
  2. Locate the Battery: Find the battery in your vehicle, usually under the hood but sometimes in the trunk.
  3. Remove the Old Battery: Disconnect the negative (-) terminal first, followed by the positive (+) terminal. Remove any hold-down clamps or brackets.
  4. Install the New Battery: Place the new Group 43 battery in the battery tray. Reattach any hold-down clamps or brackets.
  5. Reconnect the Terminals: Connect the positive (+) terminal first, followed by the negative (-) terminal.
  6. Test the Installation: Start your car to ensure the new battery is working correctly.

Maintenance Tips for Group 43 Batteries

To get the most out of your Group 43 battery, regular maintenance is key. Here are some tips to keep your battery in top shape:

  • Regularly Check the Battery Terminals: Make sure they are clean and free from corrosion. Use a wire brush to clean them if needed.
  • Test the Battery Voltage: Use a multimeter to check the battery voltage periodically. A healthy battery should read around 12.6 volts when the car is off.
  • Keep It Charged: If you don’t drive your car often, consider using a battery maintainer to keep the battery charged.

Common FAQs About Group 43 Batteries

What vehicles use Group 43 batteries?

Group 43 batteries are commonly used in a variety of vehicles, including sedans, SUVs, and light trucks. Always check your vehicle’s manual or consult with a professional to ensure compatibility.

Can I use a Group 24 battery instead of a Group 43 battery?

While Group 24 and Group 43 batteries may have similar dimensions, it’s crucial to use the battery size specified by your vehicle’s manufacturer to ensure proper fit and performance.

How long does a Group 43 battery last?

On average, a well-maintained Group 43 battery can last between 3 to 5 years. Factors like climate, driving habits, and maintenance can affect its lifespan.

What does 850 CCA mean?

CCA stands for Cold Cranking Amps. An 850 CCA rating means the battery can deliver 850 amps for 30 seconds at 0°F without dropping below 7.2 volts. It indicates how well the battery will perform in cold temperatures.

Can I buy a Group 43 battery at Walmart?

Yes, Walmart carries Group 43 batteries both in-store and online, making it a convenient option for many shoppers.


Choosing the right battery for your vehicle is crucial for reliable performance, especially in varying weather conditions. The Group 43 battery, with its specific size and 850 CCA rating, offers robust power and versatility. Whether you’re purchasing from Walmart or another trusted retailer, this guide has equipped you with the knowledge to make an informed decision. Remember to follow proper installation and maintenance practices to maximize the lifespan and efficiency of your Group 43 battery. Happy driving!