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

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 ...

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 ...

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.

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.

Q: I installed a new AGM battery in my 1999 Nissan Maxima a few days ago. The car starts and runs fine. However, the radio will sometimes get loud and then return to normal.

You'll get a basic lead-acid battery for around $100, options that offer more cranking power and durability in the $150-250 range, and fancy stuff like AGM batteries for more modern vehicles at ...

Q: I installed a new AGM battery in my 1999 Nissan Maxima a few days ago. The car starts and runs fine. However, the radio will sometimes get loud and then return to normal.

Q: I installed a new AGM battery in my 1999 Nissan Maxima a few days ago. The car starts and runs fine. However, the radio will sometimes get loud and then return to normal.