Diagnosing a faulty AGM battery requires more than a quick voltage test. Users should perform a capacity and temperature test or consult a battery monitoring system to confirm whether the unit is ...

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

AGM batteries are expensive, and if you let one discharge too far, it can become a doorstop. Thankfully, there is a way to save your battery and bring it back to life.

We compare AGM batteries to lithium batteries to help you know what to look for when buying new batteries for your boat.

I installed a new AGM battery in my 1999 Nissan Maxima. The radio will sometimes get loud and then return to normal.

We've tested and reviewed products since 1936. Read CR's review of the Duralast Platinum 35 AGM car battery to find out if it's worth it.

AGM batteries still function using the same principles as lead acid batteries. They use ultra-thin fiberglass mats to absorb battery acid instead of submerged lead plates—making them spill proof.

Even a mighty Hummer EV with a 200kWh battery uses a 12-volt battery that could leave you stranded, but Clarios has a fix for this.

AGM batteries are much more sophisticated than a traditional car battery, and that means the signs of failure are much harder to detect in some cases.

I installed a new AGM battery in my 1999 Nissan Maxima. The radio will sometimes get loud and then return to normal.