Suppose your motorcycle has an AGM-type battery. In that case, you can use a voltmeter, an open circuit voltage test that will help you determine the level of charge in the battery and its holding ...

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 ...

Read CR's review of the Duralast AGM H8-AGM car battery to find out if it's worth it. Ad-free. ... The Duralast AGM H8-AGM is part of the Car Batteries test program at Consumer Reports.

Read CR's review of the EverStart AGM H5 car battery to find out if it's worth it. Ad-free. ... The EverStart AGM H5 is part of the Car Batteries test program at Consumer Reports.

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

New, advanced AGM batteries, such as Odyssey AGM2 batteries from EnerSys, are rated at 400 discharge cycles to 80 ­percent DoD and offer plenty of ­engine-­cranking capacity. When ­shopping, balance ...

Absorbent Glass Mat, or AGM, batteries are touted by manufacturers as being more capable of meeting the demanding electrical needs of modern cars—from powering infotainment systems to fuel-saving ...