DieHard AGM batteries are some of the most recognizable on the market, but the brand's ownership has changed hands on a few ...

Lastly, different batteries require different voltages and charging devices. For instance, an AGM battery should only be ...

We've tested and reviewed products since 1936. Read CR's review of the EverStart Platinum AGM 65 car battery to find out if ...

We used the NEXPEAK 1.75-Amp Car Battery Charger on a variety of lead-acid automotive, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA, and maintenance-free batteries.

A higher score means better reliability and voltage retention over time. How long a battery can power a car if the charging ...