![]() ![]() However, to prevent your battery from dying up on you. If your engine is new and everything is performing optimally, your battery can last for at least two hours when on ACC and whilst certain electrical components such as the radio is on. You know your car better than anyone else. ![]() ![]() I have also seen some cars with old batteries being drained when the car is on ACC and not running any electrical functions. If you play loud music, switch on headlights, and other energy-thirsty electrical functions, your battery will be drained and your engine won’t start. And whenever you engage the starter, your engine will crank without any fuss. Other than the above components which don’t consume much power, ACC also turns on energy-thirsty components such as ventilators, defrosters, and headlights.ĭepending on what electrical functions you are running when the car is on ACC, it may or may not drain the car battery.įor example, let’s say you just leave the car on ACC and every electrical component on your car is switched off, it can stay in that state for hours. Depending on your vehicle, the ACC may turn on the stereo, cigarette lighter, and power seats amongst others. When you turn the key into the second position which is the ACC, you turn on some of the electric components of your car. We will look more into this process later on. The first face is when the key turns the car off, this is followed by ACC, ON, and then we have the final position which engages the starter and the engine is cranked. As you may already know, your car’s ignition has 4 faces. Does this statement make you even more confused? Don’t worry, I will explain further. If you have always wondered whether leaving your car on ACC will drain the battery, then here is the truth and not just rumors or opinions.ĪCC can and can’t drain your car battery. Some say your battery will be drained and others say that everything will remain the same. People have different opinions on what happens when you leave your car on ACC. ![]()
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