when the car battery is bad
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3 Signs of a Bad Car Battery If the battery light is on, there is likely a problem. You can also check the voltage meter that should be located near the temperature dial. When your car is on, the volt reading should be around 14 volts.When the car is off, it should be around 12.If your readings are very off from this, you may have a bad battery. Noise. The noise that you hear when you try to start your car can tell you all you need to know.hen the car is off, it should be around 12. If your readings are very off from this, you may have a bad battery. Noise. The noise that you hear when you try to start your car can tell you all you need to know.
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How to Respond When Your Car's Battery Light Goes On wikiHow to Respond When Your Car's Battery Light Goes On. Your car's battery light is an indicator of when your car's charging system is malfunctioning. This can be a result of a malfunctioning alternator, a battery going bad, or a number of other things.
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Can a car battery just die with no warning!? Same basic thing happened to me, left work car started fine. got to the gas station tried to start the car, nothing, no lights radio, nothing. Batteries can and do go bad with no warning at all. Heat in the summer is the worst time for batteries going bad. hunt_ken · 7 years ago.
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Everything You Need to Know About Car Batteries Knowledge is power when it comes to your car’s battery and electrical system. In fact, it’s your ride’s heart and soul. The last thing you want is to be left stranded with a dead battery. The more you know about your battery and electrical system, the less likely you’ll get stuck. You’re starting your car, and it keeps turning and turning, eventually starting–or not. 2  This could mean your alternator isn’t charging your battery properly. 3  If you start experiencing the possessed electrical system as well, please stop in to the nearest service facility.
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- If it cranks with a loud turnover noise and the car just doesn't start it could be another problem. You also need to remember that the alternator is the equipment that charges your battery. If your alternator is bad the battery will just drain like a flashlight battery until it is dead.The alternator keeps your battery recharged as your car uses it while the engine is running. Bad diodes in the alternator can cause the battery to go dead when the car is off.   The diode bridge (six diodes) is directly connected to the battery, and is used t … o convert three phase delta AC from the alternator's stator to DC for the battery.
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- 1 When the mercury rises, a car battery's strength goes down. 2  Extreme heat, like 95° F outside combined with high temperatures under the hood, accelerates corrosion of car batteries.  Heat causes the water to evaporate out of battery fluid, breaking down the battery grids.
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Average Life of A Car Battery Typical car batteries are lead-acid and maintenance-free. Regardless of brand, most batteries are reliable throughout their lifespan, but this is not to say problems can’t arise sooner. However, you can prevent them and get the most out of your car battery simply by paying attention to it.
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- Generally, running the engine at idle or short stop-and-go trips, during bad weather at night, will not recharge the battery effectively. In the following situations, the alternator will not adequately recharge a battery: 1. The battery is drained because an interior light was left on in the car for 18-24 hours. 2. The battery is drained because the vehicle has not been driven for a month or more. 3. The car is only driven at 35 miles per hour to a nearby store and back 2 or 3 days a week.
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- Sulfation occurs on the negative post in this condition. If corrosion was on the positive post, that would indicate a consistent over-charge condition. But an under-charge is sort of expected in a car, as the battery is charged and discharged quite a bit. As such, rarely is it at full charge.
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Why does the car battery light come on when I'm driving? , can drive a car, both forwards and backwards! The car battery light means that there is something wrong with the charging system in your car, and the battery is not getting charged. If you keep driving when the light is on, you will be draining the battery.
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Car Battery Replacement Service & Cost Battery Replacement Service & Cost. The battery is the sole source of electrical power for the car. The battery is charged during vehicle operation by the alternator. If the battery is not charged sufficiently, you will not be able to start the car or use any electrical components (lights, radio, etc.).
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Can a car battery just die with no warning!? Same basic thing happened to me, left work car started fine. got to the gas station tried to start the car, nothing, no lights radio, nothing. Batteries can and do go bad with no warning at all.
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Alternator Sure, you can use your car's battery when the alternator goes bad. The battery's reserved energy can definitely keep the engine running, but there's a price you have to pay: you have to turn off the radio and the air-conditioning. Imagine having to drive without all these creature comforts.
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- 1 Strange system lights, such as low coolant lights, could also mean there is a problem with your battery. 2  It would be best to get the car checked out by a professional. 3  Low battery fluid levels. 4  Typically, car batteries have part of the casing that is translucent, so you can check the check the fluid levels.
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What is a Charging System? If the charging system stopped working, the battery's charge would soon be depleted, leaving the car with a dead battery.. If the battery is weak and the alternator is not working, the engine may not have enough electrical current to fire the spark plugs, so the engine will stop running.
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What to Do if You Have a Flat Car Battery What to do if you have a flat car battery. Discovering that you have a flat car battery is perhaps one of the most frustrating experiences in life, as it never comes at a convenient time. Find out what you can do if your car battery is dead with this quick guide.You can suffer a dead car battery for a whole host of reasons, including cold weather, frequent short journeys, excessive strain and battery age. This is why flat car batteries are the number one reason for call-outs to breakdown services. You'll need a set of Jump Leads and a 'donor' car to do this-but first, see our how to jump start a car guide for some essential safety advice. 2  If you don't have a second car, you can use a power pack to jump start a battery, making it a good idea to keep a power pack in the boot.
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- If the alternator is dead, but the battery is fully charged, the car can and does use the electrical energy provided by the battery to run all the electrical requirements of the car. However, the battery is now being drained the entire time the car is running, and there's nothing going to recharge it.
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Battery Corrosion? if the terminals are corroded, clean them and charge the battery. It should be OK. A modern battery should last a long time-eight years perhaps. you also need to check for corrosion where the earth lead from the battery is attached to the chassis of the car. You might want to replace the earth lead if it is very bad.
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How do I know if my battery or alternator is bad? If the lights came on, you have charge. Your battery is not dead. If it were your alternator the car would not simply fail to start it would start but slowly the battery would lose charge and eventually the car would stall. Being that you had the appearance of some charge, and the car didn't stall before you parked it. I would say most likely culprit is your starter.
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Nissan North America named in class action lawsuit alleging failure to disclose defect in Timing Chain Systems which results in premature failure 31.5k Views. If the car battery is completely dead, it needs to be replaced. If the battery isn't old but it keeps dying it could be the result of a bad connection (try tightening the negative and positive battery terminals) or a bad alternator.
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Why Is the Battery Light On? The battery itself may be the cause if it has corroded cable terminals, damaged cells or plates inside or if it is leaking electrolyte. The charging system warning light should come on for a few seconds when you start the car, but if it turns on while you're driving, that signals a problem. Among other signs that the charging system isn't working are dim headlights or if the clock loses time.
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Car Battery Drain, Dead Overnight Understanding Why Your Battery Dies You may need to simply replace your battery and the problems will go away. This is especially true if your find car battery acid leaking out or seeping into the engine compartment. You can also check your car battery cells to ensure they are full of water. If they are low, it could result in your battery not properly holding a charge. Next, you can inspect your cables.
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Can a car battery just die with no warning!? It happens more often than one would think. Same basic thing happened to me, left work car started fine. got to the gas station tried to start the car, nothing, no lights radio, nothing. Batteries can and do go bad with no warning at all. Heat in the summer is the worst time for batteries going bad.
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What causes a car battery to die? Battery basicsCar batteries are usually lead-acid type called starting batteries. The technology is over 100 years old. This type of battery is made up of six cells each consisting of a lead and a lead oxide plate separated by a synthetic material. If your car won't start don't keep cranking until the battery is dead. 2  To prevent sulfation always fully charge a battery after heavy use. 3  Once sulfation begins the battery life will be diminished. 4  Put your battery on a charger if it is not going to be used for several weeks.
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- Frequent recharges indicate that your car battery is of poor quality or that you are not taking care of your car as well as you should. Some batteries have a charge indicator where you can find out the state of the battery. If the indicator is clear or yellow, you have to recharge it.
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Why does my car need to be jump started so often? 2- Bad alternator -which doesn't fully charge the battery, or carry the car's amperage load, so the battery does so. 3- Bad Voltage regulator. 4- A Short in your electrical system. You haven't said if you've replaced your battery; if it's six years old, I'd replace it anyway-regardless of what testing shows.