You can find a new car battery at auto parts stores (like AutoZone, Advance Auto Parts, O'Reilly Auto Parts), major retailers (such as Walmart), wholesale clubs (Costco, Sam's Club), through car dealerships, or via online marketplaces (Amazon). The best choice depends on your priorities: auto parts stores often offer free installation and testing, while wholesale clubs may have the lowest prices for members.
Before you shop, you need to know your vehicle's correct Group Size (a code like 24F or 35 that specifies physical dimensions and terminal placement) and Cold Cranking Amps (CCA), which measures the battery's ability to start your engine in cold weather. Most auto parts stores can look this up for you using your license plate or VIN. They can also test your current battery and alternator for free to confirm a replacement is needed.
Here’s a quick comparison of where to buy:
| Retailer | Typical Price Range | Key Advantage | Potential Drawback |
|---|
| Auto Parts Stores (AutoZone, etc.) | $120 - $250 | Free installation, free testing, extensive warranty | Can be slightly more expensive than clubs |
| Wholesale Clubs (Costco) | $100 - $200 (member price) | Very competitive pricing, strong warranty | Requires membership, may not offer installation |
| Mass Merchandisers (Walmart) | $90 - $220 | Widespread availability, often low prices | In-store expertise can vary |
| Car Dealerships | $200 - $400 | OEM (Original Equipment Manufacturer) battery | Highest cost, appointment usually needed |
| Online (Amazon, RockAuto) | $80 - $230 | Potentially lowest price, delivered to your door | You handle installation and core return |
For most people, an auto parts store provides the best balance of convenience, price, and expert service. If you're a Costco member and can install it yourself, that's often the best deal. Always check the warranty period, as a longer warranty generally indicates a higher-quality battery.
