This BCI number (e.g., Group 24, 35, or 48) indicates the battery's physical dimensions and terminal placement. An incorrect size may not fit the tray or reach the cables.

This measures a battery's ability to start an engine at 0°F. You should match or exceed the manufacturer's rating, but never go lower.

Before shopping, gather the specifications for your current vehicle. You can find these in your owner's manual or on the label of your existing battery.

Buying a car battery involves more than just finding one that fits; you need to match your vehicle's electrical needs, climate, and driving habits. 1. Identify Your Requirements

More expensive but spill-proof, vibration-resistant, and better at handling high electrical loads. If your car originally came with an AGM battery, do not downgrade to a flooded one, as it will likely fail prematurely. 3. Check for Freshness How To: Buy the right battery for your car | Cooley On Cars

The standard, most affordable option. Most are now "maintenance-free" and don't require adding water.

This indicates how many minutes the battery can power key systems if the alternator fails. 2. Choose the Right Type Modern cars typically use one of two main designs: