A battery monitor is like a gas gauge, showing you how much electrical power is left (known as state of charge) as well as other vital signs. Today adding a monitor to a boat battery is easier than ...

Four Wheeler reader Allan asks:I have a 1985 and 1986 CJ-7 both set up almost exactly the same with the following exceptions: the 1985 has dual batteries with Kirkland batteries (6 months old) and a ...

Is your Windows laptop battery not lasting as long as it used to on a single charge? High screen brightness, incorrect power settings, and too many applications running in the background are a few of ...