The 2015 Chrysler 300 uses a standard 12-volt automotive battery. The exact group size depends on the engine and equipment, so you should verify the replacement by checking the current battery label or the owner's manual.
Battery type and common sizes
Below are the battery group sizes commonly used on 2015 Chrysler 300 models, with the note that the precise fit varies by engine and production date.
- Group 58R
- Group 65
- Group 94R
The correct size for your vehicle is indicated on the current battery’s label and in the owner's manual. If you see a different group size on your battery, use that exact specification when purchasing a replacement. The system in the 300 is designed for a 12-volt lead-acid battery, and an AGM option may be used in some configurations, though most cars from this era use a conventional flooded battery.
Engine and trim differences
Battery size can vary slightly depending on the engine and trim (for example, between the 3.6-liter V6 and the 5.7-liter Hemi V8), so it’s important to match the replacement to the configuration listed for your specific vehicle.
How to confirm the exact battery for your car
To ensure you get the right replacement, follow these steps:
- Check the current battery label for the Group Size (GS), CCA, and RC. This label usually appears on the top or side of the battery.
- Consult the owner's manual or a Chrysler service guide for the recommended group size and specifications for your exact engine (3.6L V6 or 5.7L Hemi).
- Measure the battery tray dimensions and observe terminal layout to ensure a proper fit.
- Have a parts retailer cross-reference your VIN or model/year to confirm the correct OEM group size.
- Consider climate and electrical load—higher CCA is beneficial in cold climates, and RC affects how long accessories can run with the engine off.
The exact replacement size must match the original specification; rely on the battery label or the owner's manual to choose the correct group size and capacity.
Installation tips and where to buy
When buying and installing a new battery, consider both compatibility and warranty. Here are quick tips to ensure a safe and effective replacement:
- Choose a battery with an appropriate CCA rating for your climate and vehicle usage.
- Check warranty terms and ensure the replacement meets or exceeds OEM specifications.
- Disconnect the negative terminal first and reconnect it last during installation to reduce risk of sparks or shorts.
- Recycle the old battery per local regulations; many retailers offer disposal services.
With the right battery, your 2015 Chrysler 300 should start reliably and power its electronics without issue.
Summary
The 2015 Chrysler 300 requires a 12-volt automotive battery. The exact group size depends on your engine and trim, so verify the replacement using the current battery label or the owner's manual. Typical replacements are standard 12-volt lead-acid batteries that fit the original group size, and you should confirm CCA, RC, and fit with a parts retailer if the label is unclear.