Unlock to see our ratings and compare products side by side Life test measures how a battery endures repeated charge-and-discharge cycles at hot-climate engine-compartment temperatures. The more ...

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 ...

Boat batteries are the heart of it all. Whether used to power accessories or simply to start an engine, not too much happens aboard most powerboats without a battery. In today’s marketplace, boat ...

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 lead ...

Cranking over the high-compression mass of a diesel engine takes a lot of stored energy to accomplish. This is why diesel trucks use two high-cranking-amp batteries to get the pistons pumping. Most ...