Don't Buy the Wrong Battery! 2025's Car Battery Brands Ranked Worst to Best

12. AC Delco (GM OEM)

Another OEM-first brand that prioritizes fitment over performance.

Often used by GM dealers and parts shops for factory compatibility.
Basic models lack AGM features or high RC/CCA specs.
Some complaints of rapid discharge and early failure in winter months.

Cold-weather performance: Mediocre
Warranty: 2--3 years
Verdict: Safe for GM replacements, but don't expect top-tier performance.

⚠️ DECENT BUT NOT SPECIAL: MID-TIER OPTIONS (Ranks 11--7)

These brands are acceptable for the average driver. They offer reasonable performance and value, but they don't lead in any one category. If you find a good price, they're worth considering.