In today’s boats, electric power rivals the importance of engine horsepower. Even the electronic control unit on today’s marine engines—that brain that makes outboards and inboards do what we want ...

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 ...

It’s a sad part of owning a Mac laptop that you have to worry about its battery. While Apple makes high-quality lithium-ion batteries for all its devices, it’s a sure thing that maximum capacity drops ...