A boat battery-selector switch is a small but mighty component, allowing boaters control over which battery to use when starting the boat engine and powering accessories. It also lets boaters turn off ...

Almost every boat today has a voltmeter of some kind—either as a dedicated gauge or as part of a multifunction display. But voltage does not tell the whole story when it comes to marine battery status ...

There are two approaches to installing a battery disconnect. Electrical experts say either way is valid, and point out advantages/disadvantages to each approach. Install the disconnect switch on the ...