For a 2010 Chevy Impala, you generally need a 12-volt automotive battery in a Group 75 or Group 78 size, with roughly 700–760 CCA for Group 75 or 800–900 CCA for Group 78, and a reserve capacity around 100–120 minutes. The exact size and rating should be confirmed from your owner's manual or the battery door label.
Battery requirements and options for the 2010 Impala
The Impala’s electrical system runs on a standard 12-volt lead-acid automotive battery. Most models from this era use a maintenance-free, flooded lead-acid battery. AGM batteries are not typically required unless you have added significant electrical loads or you prefer the longer life and higher vibration resistance of AGM. The critical specs to match when replacing are the group size, cold-cranking amps (CCA), reserve capacity (RC), and fit under the hood.
Common group sizes used for the 2010 Impala
The following group sizes are commonly found in this model year; the exact size for your car is printed on the battery label or specified in the owner’s manual.
- Group 75 — a widely used GM full-size car battery size, typically offering around 700–760 CCA.
- Group 78 — a larger capacity option that often delivers 800–900+ CCA, depending on the brand.
Conclusion: Always verify the correct group size for your specific vehicle variant before purchasing, using the door label or owner's manual.
How to verify the right battery for your Impala
To ensure you select the correct battery, follow these steps:
- Check the driver’s door jamb sticker or the owner’s manual for the recommended battery group size and CCA range.
- Inspect the existing battery—look for the group size and CCA printed on the label.
- Measure the battery’s physical dimensions to ensure it fits under the hood and clears terminals and brackets.
- Match the terminal configuration and polarity to your vehicle’s battery cables.
With the correct size confirmed, you can choose a reputable brand and model that meets or exceeds the specified CCA and RC ratings, and verify compatibility with your climate and driving habits.
What to consider when shopping for a replacement
Beyond the group size, there are several specs that influence performance and longevity:
- Cold Cranking Amps (CCA): Higher CCA helps starting in cold weather; select a rating that meets or exceeds the OEM specification for your climate.
- Reserve Capacity (RC): A higher RC provides longer electrical support if the alternator isn’t charging or during heavy accessory use.
- Battery type: Flooded lead-acid is standard; AGM offers higher reliability in harsh conditions but typically costs more.
- Fit and terminal layout: Ensure the battery’s dimensions and terminal positions align with your engine bay and cables.
- Warranty: Look for a solid warranty (3–4 years or more is common) and consider free replacement during the warranty period.
Bottom line: Choose a battery that matches the vehicle’s specs, fits properly, and provides adequate CCA and RC for your climate and driving patterns.
Summary
The 2010 Chevy Impala typically uses a 12-volt lead-acid battery in Group 75 or 78, with CCA in the 700–900 range depending on the group size, and a healthy reserve capacity. Confirm the exact group size and ratings from the owner’s manual or the current battery label, then select a replacement that meets or exceeds those specifications, with attention to fit, climate, and warranty.