The Nissan Altima generally uses a 12-volt lead-acid automotive battery. The exact type and size—whether a standard flooded battery or an AGM (absorbed glass mat) battery, and the proper group size—depends on the model year and trim. In practice, most non-hybrid Altimas use a conventional 12V lead-acid battery, with the exact specification listed on the existing battery or in the owner's manual.
Understanding the basics
Choosing the right battery for your Altima starts with confirming the year, trim and any special electrical features. This helps ensure starting reliability and compatibility with the car’s electrical system.
Key factors that determine the right battery
To identify the correct specification for your Altima, consider the following steps. The list below explains how to verify the exact battery type and size for your vehicle.
- Model year and trim level
- Battery label or sticker on the existing battery, which shows group size (also called battery size), cold-cranking amps (CCA), and reserve capacity (RC)
- Your owner's manual or Nissan's official service specifications for the OEM battery type and minimum CCA/RC
- Terminal layout and physical fit, including cable lengths and post type (left-positive vs right-positive)
With those details in hand, choose a battery that matches or exceeds the OEM CCA and RC, and that fits the group size and terminal configuration of your Altima.
Standard vs. AGM: What to know
Most everyday Altima models use a standard flooded lead-acid 12V battery. AGM batteries are typically recommended only if the vehicle has a factory stop-start system, a high electrical demand package, or a prior dealer recommendation. Hybrids and older Altimas with specific configurations may have different requirements; always confirm with the manual or a Nissan dealer.
In practice, you’ll likely be selecting a standard 12-volt battery with the correct group size and sufficient CCA for your climate. AGM options are available but not usually necessary for typical Altima models.
Where to find the exact specification
Finding the exact battery specification for your car ensures compatibility. Start with these sources:
- Owner’s manual battery section for the OEM spec
- Battery label on the replacement and the removed unit
- Nissan dealer or trusted auto parts retailer that can cross-reference by year, model, and engine code
Following these sources will help you select the right battery for reliable starts and electrical performance.
Summary
In short, the Nissan Altima uses a 12-volt lead-acid battery. For most non-hybrid, non-stop-start models, a standard flooded 12V battery of the correct group size and sufficient CCA is appropriate. Always verify the exact group size and specifications for your specific year and trim in the owner’s manual or on the existing battery label, and consult a Nissan dealer or a trusted parts retailer if you’re unsure.