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The Acura RSX earned its reputation as a fun-to-drive, tuner-friendly coupe with dependable Honda engineering under the hood. Whether you daily drive it or keep it as a weekend project car, a healthy 12-volt battery is key to keeping your RSX running strong. If you're dealing with slow starts or flickering lights, it's probably time for a replacement.
Use our battery fitment finder to locate the right battery for your RSX based on the model year and trim. Not sure what terms like cold cranking amps or reserve capacity mean? Check out our guide, "How Do I Know Which Car Battery Fits My Car? ", for help making the right choice.
From projector-style headlights to clean cabin lighting, your RSX has plenty of personality. Whether you're replacing burnt-out bulbs or upgrading for better visibility, we carry headlight, taillight, and interior lighting options that match the RSX's sport-compact appeal.
Explore all available options in our Automotive Center.
We stock high-quality batteries from trusted brands like Duracell Ultra, Optima, and X2Power. Compact sports cars like the RSX benefit from batteries that offer strong starting power, vibration resistance, and reliable performance in all conditions. Every battery includes a free replacement warranty and is supported by expert service at over 700 Batteries Plus locations.
Most Acura RSX models use a Group Size 51R battery, but always confirm using our fitment tool to ensure the best fit for your specific year and trim.
Car batteries typically last 3 to 5 years. For vehicles like the RSX that may be stored seasonally or modified with aftermarket electronics, regular testing is a smart way to prevent unexpected issues.