The 2004 Acura TL uses a standard 12-volt lead-acid automotive battery. The most common replacement size is Group 35, though some builds may use Group 24F. Always verify with the battery label or the owner's manual before purchasing.
Battery basics for the 2004 TL
Knowing the right kind of battery goes beyond the voltage. You’ll want to match the group size to fit the battery tray and the terminal layout, ensure sufficient cold-cranking amps (CCA) for your climate, and consider the reserve capacity (RC) for accessory power if you frequently use electrical devices with the engine off.
Common replacement options
Below are the sizes most often seen as replacements for the 2004 Acura TL. The exact choice depends on the vehicle’s trim and any aftermarket replacements you install.
- Group size 35: The most common option for this model year. Typical CCA ranges from about 550 to 650+ depending on the brand; fits standard top-post terminals and a standard under-hood tray.
- Group size 24F: A second common option that some owners and dealers use. Often has higher RC and similar or slightly higher CCA, but may have a different physical fit in some TL configurations.
- AGM alternatives (optional): For customers seeking longer life or better performance in extreme climates, some aftermarket AGM batteries are sold in sizes that fit the Group 35/24F footprints. Check compatibility with your vehicle’s electrical system and the mounting/terminal layout before choosing AGM.
When shopping, start with the Group 35 size as the baseline for fit and performance, and consider Group 24F if you’re replacing a battery that already uses that size or if a retailer specifically recommends it for your exact vehicle configuration.
How to confirm the exact size for your vehicle
To ensure you buy the right battery, confirm using these steps.
- Look at your current battery’s label for the group size (e.g., 35, 24F) and CCA rating.
- Consult the owner’s manual or the factory service information for the TL’s recommended battery group size and specs.
- Use a parts retailer’s vehicle fit tool by entering your VIN or selecting 2004 Acura TL to see compatible batteries.
- Ask a professional technician or parts specialist to verify fitment before purchase, especially if you’re considering an AGM option.
Verifying the exact group size and terminal layout ensures you don’t run into fitment or electrical compatibility issues after replacement.
Additional considerations
In addition to group size and CCA, consider climate, driving patterns, and warranty when selecting a battery. AGM batteries offer advantages in vibration resistance and longevity but aren’t necessary for every TL. Check for a warranty length that suits you, and ensure the installer wires and terminals are compatible with your car’s electrical system.
Summary
The 2004 Acura TL typically uses a 12-volt lead-acid battery, with Group size 35 as the most common replacement option, and Group 24F as an alternative in some configurations. Always verify the exact group size, CCA, and terminal layout on the existing battery or in the owner’s manual, and use a reputable parts retailer’s fit tool or a professional to confirm compatibility. AGM options are available but require careful compatibility checks.