The humble battery charger has evolved to a smart, microprocessor-controlled battery charger-maintainer, able to detect weak batteries and—to an extent—“repair” them, alert the operator to dangerous ...

This article was updated with new information in December 2025. A vehicle’s performance starts–no pun intended–with its power source, making battery care one of the most important—yet ...

It's a fairly basic battery maintainer that is affordable and easy to use, simply connecting to your battery with battery clips or O-ring terminals. As a maintainer, it'll automatically stop charging ...