Have you ever wondered how a car engine starts? Or how the air conditioner turns on when the car is switched off? The answer to these questions is simple: the battery plays an essential part in the ...

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 ...

Although internal combustion engines rely on burning fuel and air to run, they do need some help starting up in the first place. In the old days, that could mean standing outside your car and getting ...

To determine the appropriate amperage, you need to consider the Cold Cranking Amps (CCA) rating of the vehicle's battery and the engine size. ...