HOT ROD Untangles A Mystery: How To Bring An AGM Battery Back From The Dead. Before You Replace That Expensive Piece, Try This. At HOT ROD, we hear stuff. Lately we've been hearing about hot rodders' ...

Drivers who want a car battery that truly lasts look closely at what Consumer Reports finds in its long-term testing. I focus here on five specific models that stand out for lifespan, reliability, and ...

AGM (Absorbent Glass Mat) batteries, known for their longevity, low maintenance requirements, and capacity to deal with deep discharges, have emerged as the go-to choice for contemporary automobiles ...

An AGM battery, or absorbent glass mat battery, is essentially a more advanced version of a lead-acid battery. There are differences between AGM and standard lead-acid batteries, one of which being ...

Hey guys, my Mercedes CLA's OEM VARTA AGM battery has been getting worse over the past 3-4 months. 4 months ago it used to hold atleast charge ...

A car battery is essential for getting your car to start, and these five brands stand out among the ones with the best ...

Cranking over the high-compression mass of a diesel engine takes a lot of stored energy to accomplish. This is why diesel trucks use two high-cranking-amp batteries to get the pistons pumping. Most ...

Life test measures how a battery endures repeated charge-and-discharge cycles at hot-climate engine-compartment temperatures. The more cycles endured while maintaining a higher voltage, the higher the ...

How well a battery withstands repeated charge-discharge cycles in high temperatures. A higher score means better reliability and voltage retention over time. How long a battery can power a car if the ...

This article was updated with new information in December 2025. A vehicle’s performance starts–no pun intended–with its power source, making battery care one of the most important—yet ...