To determine what battery your car needs, you should first consult the owners manual of your car or truck. The battery section of the manual should provide you with the information you need to find the correct battery size. If you cant find the owners manual, you can look at your existing battery to determine the group size, which is assigned using the Battery Council International (BCI) group size standard. You can also use an online battery size chart to find the dimensions, CCA rating, and other details associated with the battery size you need.

When choosing a battery, it is important to consider factors such as the Cold Cranking Amps (CCA) rating, battery type, and reserve capacity. The CCA rating is a measure of a batterys ability to start an engine in cold temperatures, while the reserve capacity is an indicator of how long a new, fully charged battery can continue to operate essential accessories if the vehicles alternator fails.

If you are unsure of what battery is needed for your car, you can consult with the battery experts at Batteries Plus or AutoZone, or use their fitment finder on their website. It is important to choose a battery that will be strong enough to start your car or truck in any weather and run all of the cars electrical equipment and accessories without fail.

In summary, to determine what battery your car needs, you should:

• Consult the owners manual of your car or truck
• Look at your existing battery to determine the group size
• Use an online battery size chart to find the dimensions, CCA rating, and other details associated with the battery size you need
• Consider factors such as the CCA rating, battery type, and reserve capacity
• Consult with the battery experts at Batteries Plus or AutoZone, or use their fitment finder on their website if you are unsure of what battery is needed.