This way you will know for sure all your issues are taken care of. The device can also normally check the alternator as well, so it isn’t a bad idea to have them look at your vehicle even if you have checked the alternator with the voltmeter yourself.
They will hook a device up to it, and the device will make sure that the battery is working and charging right.
CAR BATTERY INDICATOR TURN ON THEN SHUTS BACK OFF FOR FREE
If it is, then you can go to any local auto tool shop, and most will test your battery for free If it is less than that, then the battery is not holding a charge and will need to be replaced. If you haven’t already connected a voltmeter to the battery when checking the alternator, then you can do that now. Clean off the battery terminals when checking the wires to make sure there is no corrosion on them.Īfter checking the wires, you can check the battery. If the connection is dirty, then this can affect it as well. One key thing to do when checking the wires tightness is to also make sure that they are clean. If the wires come loose for moments while driving, then that can be why the battery light is coming on and then going off. The first thing you should do when checking the battery is to make sure all the wires are connected tightly. If the alternator is fine, but you are still having the battery light come on, then it is time to check the battery itself. You can most likely need to take your car to a shop and have this done unless you are a mechanic and good with cars. If the reading does not move up or if the number starts to drop, then the alternator is not working properly and will need to be repaired or replaced. The reading should jump up to around 14 volts if the alternator is working right. Then start the car and see what the reading is. Hook the voltmeter up to the battery and see what the reading is. After making sure all the wires are connected, you can test the alternator. If there are any loose wires, then tighten them. The first thing to check with the alternator is to make sure all the wires are connected properly. This is why it is important to check your alternator if your battery light starts to blink on and off. If it goes all the way out, then your vehicle will die pretty quickly, and you will be stranded. If you don’t have a working alternator, your car will eventually stop working. The alternator is a key part of your car because it helps take mechanical energy from your car and converts it to electrical energy to recharge the battery, so the battery can start your car again the next time it is needed too. It is important to check your alternator if your battery light starts to blink on and off This is why your battery light might come on for a bit when the alternator isn’t working and then go off when it starts working again. This means that it will work, stop, and work again and sometimes it will do this quickly, while other times it will be longer between the cycle. Instead, it malfunctions and stops working slowly. An alternator normal doesn’t just die and stop working. The first and worse one is that the alternator is not working properly.
So, now we can get in-depth more on the possible issues that are happening when your battery light goes on and off while driving.
The reason your car doesn’t just die when the connection is lost is that your car can run off the battery charge for a while.Īlso, if the alternator is working right, then it can put off enough charge to run the car even if the battery is not connected. This is because a bump or curve can cause a wire that is barely connected to shift and lose connection. On the other hand, if the light comes on when you hit a bump in the road or are going around a curve, then the problem is more likely to be a connection issue with a wire. If the light comes on when just driving normal on a smooth road, then it is most likely more of an issue with the alternator not putting out enough charge or not working properly. When does it come on?ĭepending on when the battery warning light comes on might help you figure out what is wrong. Sometimes it can be hard to notice it come on as well because it might only blink on for a second or two before going back off. The battery light on your dashboard is important to look out for a while driving. Normally it is a good idea to check these things out as soon as possible because if either stop working properly, then you will be left stranded. When the battery light goes on and off while driving, it means you are having some sort of issues with one of these two things. One is to let you know when there is an issue with the battery, but the other is to let you know if there is something wrong with the alternator. The battery light serves two main purposes in your car.
Why Does Battery Light Go On And Off While Driving? Battery Light
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