AGM batteries are 40% to 100% costlier than lead-acid batteries but have a corresponding list of advantages: longer lifespan, slower discharge and faster recharge times, better resistance to ...

Here's the magic fix: When an AGM battery won't charge by ordinary means, simply connect a second, well-charged battery (12.4 volts or greater) in parallel with the dead unit—positive to ...

AGM batteries have been a vehicular standard for decades, and for good reason: they're hearty and reliable. Their sealed designs make them more resistant to the kind of intense vibrational force ...

The latest absorbed glass mat batteries can provide engine-cranking pulses up to 2,250 amps for five seconds, ensuring ...

Shopping for a car battery? Read about types, features, and other must-know topics in our car battery buying guide to make an informed choice.

He adds, “We have seen that most of the AGM batteries excel in our heat-focused life testing, based on 15 weeks of continuous testing at over 160° F.” But there are even challenges with AGM ...

Some 12-Volt Battery Background. For over a half-century, 12-volt batteries were engineered and optimized to provide the cold cranking amps needed to start an internal combustion engine when it ...

AGM is a relatively new technology compared to traditional lead-acid. AGM batteries no longer require daily maintenance like adding distilled water; however, they have many other disadvantages of ...