car battery keeps dying but alternator is good

While youre under the hood or at Advance Auto Parts test the alternator. You could get a jump and get your battery recharged but the same thing is going to happen again fairly quickly as the charge dissipates and once again dies because your car is not able to maintain the battery thanks to.

Why My Car Battery Keeps Dying But Alternator Is Good

After-market stereos especially those that need a permanent live can often drain a battery if not fitted properly.

. I charged the battery this morning. Running with accessories off you should see voltage of about 135 to 145. However if the alternator is not functioning correctly the battery will eventually die.

2Fan belt slack or worn. This may cause harm and it should get rectified to prevent it from causing more damages. Why Does My Car Battery Keep Dying But Alternator Is Good Keeping customer satisfaction as the top priority we present our Premio range of automotive batteries for all four-wheeler applications.

You also might have something that is drawing power. This slow battery drain almost sounds like a bad diode in the alternator voltage regulator. Battery is new and alternator tested good.

When your car battery keeps dying but the alternator is good then you may have two problems going on at the same time. If this is the case have your car checked by a qualified mechanic to correct the problem. But if you have a new battery that keeps dying then the problem might be a bad alternator or a faulty electrical system.

An alternator can be good but you can still have charging problems if- 1Battery is no good. But if any of the components that make up the engine fail the engine will fall like a dry pine tree just as it did in the beginning. The charging system problem might be in the battery itself or the battery and the alternator connections where the current passes.

The first problem is that the battery is bad and the second problem is that the temperature sensor in your thermostat housing could also be bad. To check the alternator output first make sure the fuses are. Test the alternator with the engine running using a voltmeter across the battery.

12 or less means no current is flowing into the battery. Common Reasons Why Car Battery Keeps Dying. My car keeps dying when Im driving and when I try to jump it sometimes it wont do anything at all and then a few days later starts right up.

Some of these problems are enough to kill a battery on their own while. But the only way to check that is to remove the large red charging wire from the alternator for a time that wire is always hot so will back feed through a bad diode or have the alternator checked by an automotive electrical shop - PITA because its a new unit. If the car battery keeps dying but your alternator is good you might be facing charging issues or trouble with a parasitic drain.

You could disconnect the battery to check the running of older cars which used generators. If the battery test shows that it is still good then its time to start looking at a parasitic power draw. Yes its a bit strange considering the alternator is in good shape.

The alternator might be trying to charge like crazy but if you have a damaged battery cableeither positive or ground side either one a bad loose or corroded battery cable connection a bad or loose battery ground etc. If the alternator is in bad shape its common for the battery to dye more often due to undercharging. You need to have the charging system tested.

You can get them almost anywhere that sell batteries. However even though the alternator is good the battery may keep dying. Could be the alternator or a bad connection or wire.

Hence it keeps dying. First DONT check your alternator that way anymore. The best quickest check I can tell you is to put a volt meter across the battery.

If the alternator is not charging the battery will go dead under normal. If the voltage regulator in your car completely fails then the battery can no longer be charged by the alternator and it will soon lose its charge and die. Make sure the battery has a good clean ground.

If the alternator is working properly it will keep the battery charged and the car running. 3Poor or broken wiring connections at alternator. Some of the most common reasons for a car battery to die repeatedly include loose or corroded battery connections persistent electrical drains charging problems constantly demanding more power than the alternator can provide and even extreme weather.

And the battery is one of those critical components for the proper functioning of the engine. The alternator distributes power to electrical systems and recharges the battery but if it is faulty the power will get drawn by the circuit even when the engine is not functioning. I charged the battery this morning went and put it in and it started right up.

If you have a loose cable connection or corroded battery terminals the vehicles battery cannot connect properly to charge. What Causes a Car Battery to Keep Dying. My battery keeps dying but my alternator is fine.

Your friend was not being so helpful when they said your car was old enough it would be okay to disconnect the battery. The most common explanation is that you have a bad battery. This is a good way to fry electrical components in your vehicle as well as your alternator.

The engine of our vehicle like the heart of the human body is responsible for bringing it to life. Battery is new and alternator tested good. Its not good to do on newer systems.

They havent used generators since the. Fortunately shopping for a car battery isnt a hassle with expert advice from Advance Auto Parts Team Members. Another check for your alternator is to use a voltage meter and measure the battery voltage while the car is running.

Yet if you ever confront this situation multiple reasons are contributing towards the same. The connection from the alternator to the battery. It doesnt matter how much juice your alternator is pumping into your battery if it cant hold a charge.

Car Battery Keeps Dying but Alternator is Good. Make sure the alternator is grounded to the engine and the engine ground strap is intact and has clean grounds on both the engine and frame. We help you diagnose your car battery troubles.

A fault here can be detected by checking the output of the alternator. Nobody looks forward to dealing with a dead car battery but its even worse if you swap out the dead battery for a new one only to have the same problem. You should read 135 to 147 volts.

Faulty Alternator Diode or Connection. 4Loose or dirty. If its providing a good output then inspect the cable carefully.

When the car battery keeps dying but the alternator is good the possible problem must be the charging system. Should read about 14 volts. So it doesnt matter whether your vehicles alternator is good.

You could have a good alternator but the battery still isnt being charged. There are a few reasons that your car battery could keep dying even if your alternator is good. How long a car will run off of the alternator depends on the.

Parasitic battery drain is another culprit to a vehicles battery dying even when the alternator is good.

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