This refers to the battery's physical dimensions and terminal locations. Check your owner's manual or an in-store fit guide from retailers like AutoZone to find your specific group number (e.g., Size 35, 24, or 65).

Batteries usually come with a 2- or 3-year free replacement period. For longer-term peace of mind, some reviewers suggest looking for brands with lifetime warranties if you plan to keep the car for many years.

Before buying, you need to ensure the battery physically fits and has the right power ratings for your climate.

Primarily for high-end performance cars or specific hybrids; they are lightweight but significantly more expensive. 3. Buying Tips