Typically a Group Size 75 (75R) 12V automotive battery is used on 2002 Mitsubishi Eclipse models, with cold-cranking amps (CCA) in the approximate range of 680–800 depending on engine and climate. Always verify the exact size by checking the vehicle’s manual or the battery label when purchasing a replacement.
Battery size by engine and model specifics
Most 2002 Eclipse models share a similar footprint, but the exact group size can vary slightly between the 4-cylinder and V6 versions and regional specifications. The following details reflect common replacement standards used in parts catalogs and by service shops:
- Group size: 75 or 75R
- Voltage: 12V
- Typical cold-cranking amps (CCA): roughly 680–800 A
- Recommended capacity (Ah): typically 70–90 Ah
Battery specification labels on your car or the OEM service information will specify the exact group size and CCA for your VIN.
How to confirm the right battery for your Eclipse
To ensure you select the correct size, follow these steps:
- Check your owner's manual or the existing battery for the group size and CCA specification.
- Inspect the battery in the engine bay for the label showing group size (e.g., 75 or 75R), CCA, and RC (reserve capacity).
- If the label is unreadable, use your VIN to lookup the exact OEM battery specification from a Mitsubishi dealer or a reputable parts database.
- Choose a replacement with at least the same or higher CCA and RC as the OEM specification, and ensure the terminal layout matches your vehicle's cables.
In practice, most replacements will use a Group Size 75 or 75R with around 700–800 CCA for colder climates and roughly 90 Ah capacity; verify with your VIN for precision.
OEM references and cross-compatibility
Aftermarket batteries list Group Size 75 or 75R as compatible with the 2002 Eclipse. Some suppliers offer alternative footprints (such as 24F or 34F), but these are not typically recommended unless your manual or a parts specialist confirms fitment due to cable clearance and terminal orientation. Always verify the fit before purchasing.
Summary: The 2002 Mitsubishi Eclipse generally uses a 12V automotive battery in Group Size 75 or 75R, with typical CCA around 680–800 and capacity around 70–90 Ah. To be certain, check the vehicle manual or the battery label, or consult a parts specialist using your VIN.


