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What is the difference between 96R and 90R battery?


When it comes to replacing your car battery, understanding the differences between battery types is crucial to ensure optimal performance and compatibility with your vehicle. Two common battery types, the 96R and 90R, are often compared due to their similar naming conventions. However, they have distinct differences that can impact your vehicle's performance. In this article, we’ll break down the key differences between these two battery types to help you make an informed decision.


1. Size and Dimensions


The most noticeable difference between the 96R and 90R batteries lies in their physical size and dimensions. Car batteries are categorized into groups based on their size, terminal placement, and other specifications. The 96R battery is slightly smaller in size compared to the 90R battery. This difference in size can affect whether the battery fits securely in your vehicle's battery tray.


2. Cold Cranking Amps (CCA)


Cold Cranking Amps (CCA) is a measure of a battery's ability to start an engine in cold temperatures. The 96R battery typically has a higher CCA rating compared to the 90R. This makes the 96R a better choice for vehicles operating in colder climates, as it provides more reliable starting power in low temperatures.


3. Reserve Capacity (RC)


Reserve Capacity (RC) refers to the amount of time a fully charged battery can supply power without the engine running. The 90R battery often has a slightly higher RC compared to the 96R. This means the 90R can provide power for a longer duration in situations where the alternator is not recharging the battery, such as during extended accessory use.


4. Terminal Placement


Another key difference is the placement of the terminals. The 96R and 90R batteries may have different terminal configurations, which can affect compatibility with your vehicle's wiring. It’s essential to ensure that the terminal placement matches your vehicle's requirements to avoid installation issues.


5. Vehicle Compatibility


Both the 96R and 90R batteries are designed for specific vehicle makes and models. The 96R is commonly found in smaller vehicles, while the 90R is often used in larger vehicles or those with higher power demands. Always consult your vehicle’s owner manual or a trusted mechanic to determine the correct battery type for your car.


Key Takeaways



  • Size: The 96R is smaller than the 90R, which may affect fitment.

  • Cold Cranking Amps (CCA): The 96R generally has a higher CCA, making it better for cold climates.

  • Reserve Capacity (RC): The 90R often has a higher RC, providing longer power duration without recharging.

  • Terminal Placement: Ensure the terminal configuration matches your vehicle’s requirements.

  • Compatibility: The 96R is suited for smaller vehicles, while the 90R is better for larger or high-demand vehicles.


Choosing the right battery for your vehicle is essential for maintaining performance and reliability. If you’re unsure which battery type is best for your car, consult a professional mechanic or refer to your vehicle’s owner manual. At Kevin’s Autos, we’re always here to help with expert advice and quality service to keep your car running smoothly.


Frequently Asked Questions

What happens if I use the wrong group size battery?


For example, the wrong battery size can cause the alternator to overheat thereby shortening its lifespan. This is why it's important to follow your car manufacturers' recommendations when buying a new battery for your car.



What does 96R mean on a battery?


Here are some facts about the 96R car battery: The 96R group size code indicates that the battery has a length of 9.5 inches, a width of 6.9375 inches, and a height of 6.9375 inches. The positive terminal of the battery is located on the top left, which is called reverse polarity.



Does battery group size really matter?


Yes, it does! While there might be a few compatible batteries, like a Group Size 26R and 35, there are very few matches that have the same physical dimensions and amp-hours that will work for your vehicle.



What battery is equivalent to a 96R?


T5, T6. All the sizes of “T” Batteries are the exact same footprint as the “H” Sizes, but they are about 3/4-inch (17mm) lower in height. The T5 is also called Group 96R. The T6 is also called L2.



What do the letters on batteries mean?


These batteries typically include two letters followed by four numbers. The first letter indicates the chemical composition, while the second indicates the shape. The four numbers describe the size, with the first two indicating diameter and the second two indicating height.



What does S and P mean battery?


Often in battery packs, "Series" and "Parallel" refer to different ways of connecting individual battery cells to increase the overall voltage or capacity of the pack.



Is reserve capacity the same as AMP hours?


Reserve capacity differs from amp-hours (Ah) in that reserve capacity is simply a measure of time, whereas amp-hours measure the amount of amps, or current, that can be produced in one hour. You can calculate reserve capacity from amp-hours, and vice versa, as they are related, but they are not the same thing.



What does the R mean on a battery?


In both types the L (if any) indicates that the battery has a left pole orientation (see below for more details) while the R indicates a right pole orientation based on the negative pole. If you can not find your battery type, just measure it with a meter and note all 3 dimensions.



How long does a 96R battery last?


The average lifespan of a 96R car battery typically ranges between 3 to 5 years. However, it can vary based on factors like driving habits, climate, and how well the battery is maintained.



What is the difference between 96R and 94r battery?


our stock size is 96r but it is in fact possible to fit a larger 94r battery. 200 more cranking amps, as well as a higher reserve capacity. battery dimensions are identical aside from the 94r being about 1.5" longer.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.