car battery keeps dying but alternator is good

Battery is getting a charge too. Some of the guys that do the.

How To Tell If Your Car Battery Is Dead Or About To Carcarehunt

If the alternator is in bad shape its common for the battery to dye more often due to undercharging.

. I charged the battery this morning went and put it in and it started right up. This slow battery drain almost sounds like a bad diode in the alternator voltage regulator. We help you diagnose your car battery troubles.

When the car battery keeps dying but the alternator is good the possible problem must be the charging system. You all the time. For fear of it dying.

While youre under the hood or at Advance Auto Parts test the alternator. A fault here can be detected by checking the output of the alternator. The battery light stays on but sometimes will go off for a few seconds.

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. This is a good way to fry electrical components in your vehicle as well as your alternator. And got out for 5 minutes and get back in it still takes a second as if the battery didnt charge while i was driving.

The most common explanation is that you have a bad battery. I charged the battery this morning. Could also be a faulty alternator or whatever controls the alternator.

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. Some of these problems are enough to kill a battery on their own while. Have you checked the voltage level of the battery with the car running.

You should read 135 to 147 volts. This may cause harm and it should get rectified to prevent it from causing more damages. So it doesnt matter whether your vehicles alternator is good.

There are a few reasons that your car battery could keep dying even if your alternator is good. Autozone says alternator is good but battery keeps dying. You could disconnect the battery to check the running of older cars which used generators.

I guess that is when the alternator will charge the battery a little bit but the light will then come back on and the car will die again. Yet if you ever confront this situation multiple reasons are contributing towards the same. Make sure the battery has a good clean ground.

Battery is new and alternator tested good. The charging system problem might be in the battery itself or the battery and the alternator connections where the current passes. You also might have something that is drawing power.

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. It doesnt matter how much juice your alternator is pumping into your battery if it cant hold a charge. Test the alternator with the engine running using a voltmeter across the battery.

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. If you have an old battery then replacing it with a new one will probably solve your problem. I was wondering if it was a bad starter or messed up cable.

Yes its a bit strange considering the alternator is in good shape. The fact that it dies after sitting for a day or so would point to either a faulty battery or something is draining the battery while the car is turned off. 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.

The engine of our vehicle like the heart of the human body is responsible for bringing it to life. If the alternator is not charging the battery will go dead under normal. To check the alternator output first make sure the fuses are.

And the battery is one of those critical components for the proper functioning of the engine. The connection from the alternator to the battery. 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.

Parasitic battery drain is another culprit to a vehicles battery dying even when the alternator is good. If the battery test shows that it is still good then its time to start looking at a parasitic power draw. If you have a loose cable connection or corroded battery terminals the vehicles battery cannot connect properly to charge.

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. Hence it keeps dying. However even though the alternator is good the battery may keep dying.

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. When your car battery keeps dying but the alternator is good then you may have two problems going on at the same time. I can jump my car and leave it running for about an hour and then when I go to start it the next day it will start but if I miss starting it just.

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. Your friend was not being so helpful when they said your car was old enough it would be okay to disconnect the battery. 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. Up to 20 cash back Why does my car keep dying even with a new battery and alternator. Battery good Alternator good car still dies Battery good Alternator good car still dies.

But the light mostly stays on and the car keeps dying. With the engine running pull a cable from a battery post. If the car battery keeps dying but your alternator is good you might be facing charging issues or trouble with a parasitic drain.

If its providing a good output then inspect the cable carefully. If it doesnt keep running your problem is before the battery. They havent used generators since the.

Faulty Alternator Diode or Connection. What Causes a Car Battery to Keep Dying. 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.

Battery is new and alternator tested good. Common Reasons Why Car Battery Keeps Dying. A failed diode in the alternator creates a closed circuit that drains your battery even when the engine is off.

Car Battery Keeps Dying but Alternator is Good. A battery with a bad cell could cause your issue. My Battery is brand new and is fine my connections are not corroded and I checked my alternator by jump starting it and disconnecting the negative terminal on the battery and the car kept running.

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