Four Duralast Platinum AGM group 65 batteries also failed before reaching 12 weeks. That's longer than the group 48 models but still disappointing. — Jim Travers ...

That said, AGM batteries (more on that in the FAQ section) ... According to Autozone, “the average car battery life is between three and five years.” This can, naturally, vary.

They specialize in AGM and Lithium variants, no lead-acid, with high-performance use being the focus. Most batteries have a one to three-year warranty with a 60-day risk-free guarantee from the brand.

AGM batteries improve on a major flaw of flooded batteries, ... chain auto parts stores such as AutoZone and Advanced Auto Parts offer free battery testing and charging services.