If your car battery is on the verge of death, it will cause your car light to come on at any time.Įven though car batteries are sold as having warranties at different lengths (ie: 48, 72, or even 96 months), don’t expect them to last that long… they rarely do. This is especially true if you drive your vehicle frequently every day or live in a hot geographical region, like Florida.Ĭar batteries tend to die a lot faster when they’re used in hot temperatures. If your battery is over 3 years old, don’t assume the battery itself is not at fault or even completely dead. If you notice some corrosion as well, make sure to clean that off before tightening. To fix, make sure the battery cable terminal is seated as far down on the battery post as possible and then simply take a wrench or socket (10mm for most vehicles) and tighten the nut on each terminal until it stops turning. Often this happens immediately after hitting a bump in the road or after installing a new battery. The same way a corroded battery terminal causes an incomplete charging connection, a battery cable that’s simply not connected tight enough can cause the battery light to come on while driving. Simply disconnect the battery cables and then use a mixture of baking soda and water (1 Tbs added to 200 ml of water) to clean the posts and terminals using a toothbrush.Īlternatively, you can use a battery terminal cleaner brush or wire brush to remove the corrosion. If you notice a white-ish crusty or powdery substance where the battery cables meet at the posts, you have corrosion. This will cause the battery light to stay on after you start your vehicle. But sometimes corrosion on the battery posts or terminals can interrupt the flow of electricity and not allow the alternator to do its job. This is a common problem and usually let’s itself known by making your vehicle difficult to start as the starter motor turns over slowly. This could mean fixing certain components or replacing entire components or parts. Once you figure out the cause(s), you can work to correct the problem. Sometimes you may experience more than one of these reasons, but this list will give you a rough idea of what to look for in your vehicle. Below are the top 7 reasons to help you diagnose the problem. There are a variety of reasons which can cause the battery light in the car to illuminate while driving. What it Means When the Battery Light Comes On What it Means When the Battery Light Comes On.CarAdvise makes car care simple and guarantees that you’ll pay less than retail price on all car maintenance services. In either case, the best way to get maintenance done on your battery cables is to book your appointment through CarAdvise. Otherwise, the issues above may stem from a compromised battery terminal, in which case the terminal can be replaced instead. If the cable itself is damaged or corroded, it will be replaced entirely. If you notice any of the above signs, get your car serviced by a car care professional right away. This may include intermittent engine stalling, which poses a safety issue. Problems driving – Since power delivery to the car’s electrical system is being interrupted, poor battery cables can cause all sorts of issues when it comes to drivability.If your battery cables are causing issues, one or more of these warning lights may turn on. Dashboard warning lights are on – Your car’s dashboard contains many warning lights that will illuminate when something is wrong with the car.Slow engine crank – Corroded battery cables will cause excessive resistance along the circuit pathway to the starter, causing the engine to crank more slowly.No electrical power – Failing battery cables can prevent the voltage from your battery from reaching the lighting and accessories of your car.Car won’t start – Damaged battery cables can prevent electricity from reaching the starter motor, causing ignition issues.The battery cables are much larger than other types of cables you may have it home due to the large amounts of energy they are required to carry. The negative battery cable attaches to the negative terminal of the battery on one end and a grounding point at the other end. The positive battery cable attaches to the positive battery terminal at one end and to the starter motor on the other end. There are two battery cables: a positive one, usually red, and a negative one, which is usually black. Through them, your battery is able to provide power to your vehicle. The battery cables of your car connects the battery to the rest of the electrical system.
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