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 ...

Horse Sense:NHRA rules mandate that a battery-disconnect switch be installed on the positive side of the battery. This is fine for a purpose-built race car without an alternator, but for a street car, ...

If you know your car’s battery is on its way out, it’s best to replace it as soon as possible. You don’t want to get stuck on the side of the road because you ran out of juice. Thankfully, ...