To find the correct CCA rating, you should:
* Check your owner's manual: This is the best source of information. The manual will specify the recommended CCA range for your specific Blazer model.
* Look at your existing battery: The CCA rating is usually printed on the battery itself. This is a good starting point, but it's always best to confirm with the owner's manual.
* Consult a parts store: Provide them with your Blazer's year, make, model, and engine size. They can look up the correct CCA rating for your vehicle.
Using a battery with too few CCAs will result in poor starting performance, especially in cold weather. Using one with significantly *more* CCAs than recommended is generally okay, though you might pay a little more for a larger battery than necessary.
