The TL uses a 12-volt automotive battery. The typical replacement size for this model is Group Size 65, but you should verify by inspecting the battery label or consulting the owner’s manual.
In more detail, the battery is a standard 12-volt lead-acid unit with a specific group size that defines its fitment in the engine bay, terminal layout, and electrical rating. Depending on market and trim, the exact size can vary, so checking the current battery or OEM documentation is essential before purchasing a replacement.
Battery type and group size
The 2012 Acura TL relies on a conventional 12-volt battery with a flooded lead-acid design. Group size codes (such as 65, 75, or 24F) indicate fitment in the engine bay, terminal placement, and overall size. For many 2012 TL models, Group Size 65 is commonly recommended, but you should confirm the exact size for your specific car.
How to confirm the correct size
To ensure you buy the right replacement, use these steps:
- Inspect the label on the battery itself for the group size code (for example, 65, 75, 24F).
- Consult the owner’s manual or a dealership Parts Dept with your VIN to confirm the exact group size.
- Verify terminal layout and battery dimensions to ensure a proper fit under the hood and avoid clearance issues.
- Match or exceed the OEM's CCA (cold-cranking amps) and RC (reserve capacity) ratings for reliable starting performance in your climate.
With the correct group size identified, you can select a compatible replacement from OEM, dealer, or reputable aftermarket brands with confidence.
Common sizes and notes
While Group Size 65 is commonly used for the 2012 TL, variations exist due to regional supply, optional equipment, or replacement choices. If your battery was previously replaced with a different group size, ensure the dimensions and terminal layout match, and check that the higher/lower CCA rating is appropriate for your climate.
Summary
The 2012 Acura TL uses a 12-volt lead-acid car battery. The usual replacement size is Group Size 65, but always verify by checking the battery label or manual. Confirm the correct group size, match CCA/RC ratings, and ensure a proper fit before buying a replacement to ensure reliable starts and compatibility with the engine bay.


