The 2015 Dodge Challenger uses a standard 12-volt automotive battery. The most common replacement size is Group Size 75, though some higher-performance trims may use Group Size 78. The OEM battery is typically a flooded lead-acid type, with AGM replacements widely available for aftermarket buyers.
To understand which size your specific Challenger requires, it helps to know that battery sizing can vary by engine and trim. Most mid-range and many V8 variants stick with Group Size 75, while certain performance-oriented configurations may use Group Size 78. Always verify the exact size from the vehicle’s battery label or the owner’s manual.
Common battery sizes for the 2015 Challenger
The following sizes cover what you’re likely to encounter when replacing the original battery on a 2015 Challenger. This guide focuses on typical group sizes rather than every possible aftermarket option.
- Group Size 75 — Standard for most 2015 Challenger configurations (including many V6 and some V8 models). This size fits the factory battery tray and offers ample cold-cranking amps for daily driving.
- Group Size 78 — Used on select higher-performance or specific trim configurations where a larger capacity battery is recommended.
When replacing, match not only the group size but also the CCA rating and terminal configuration to the OEM specification to ensure proper fit and performance.
How to verify the precise battery size for your Challenger
- Check the label on your current battery for the “Group Size” designation (e.g., 75 or 78).
- Consult the owner’s manual or a dealership service bulletin for the exact spec for your trim and engine.
- Use your vehicle’s VIN with a parts lookup tool (dealer or reputable parts retailer) to confirm the recommended battery size.
- Inspect the battery tray and terminal layout to ensure the chosen replacement will physically fit and connect correctly.
- When in doubt, ask a parts specialist or a Chrysler/Modge dealership to confirm before purchasing.
Following these steps will help ensure you select the correct battery size and avoid fitment or performance issues during installation.
Summary
For a 2015 Dodge Challenger, the typical replacement battery is Group Size 75, with Group Size 78 used on certain higher-performance variants. Always verify the exact size from the battery label, owner’s manual, or dealer to ensure proper fit and performance. If you’re replacing soon, consider confirming CCA requirements and terminal orientation to avoid surprises during installation.