car battery keeps dying but alternator is good

My truck started having trouble starting when I would get in it in the morning. You also might have something that is drawing power after you shut off the engine.

Blog Car Battery Or Alternator Where S The Problem

Find the cars fuse box and remove the cover.

. With the car engine off and anything that might consume electricity turned off including the inside light. It doesnt matter how much juice your alternator is pumping into your battery if it cant hold a charge. In turn the car battery wont have enough power to start the vehicle.

I charged the battery this morning went and put it in and it started right up. If the alternator is in bad shape its common for the battery to dye more often due to undercharging. Parasitic drain above safe threshold.

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. Its not good to do on newer systems. If necessary a new air filter can be installed.

2 Answers Richard Scordino Chevrolet Master 6982 Answers First DONT check your alternator that way anymore. I charged the battery this morning. If there is a problem with this part of the car then it wont be able to charge the battery and will eventually stop working altogether.

When the car battery keeps dying but the alternator is good the possible problem must be the charging system. Some of these problems are enough to kill a battery on their own while. Yes its a bit strange considering the alternator is in good shape.

Yet if you ever confront this situation multiple reasons are contributing towards the same. Check for anything energized while the car is off. Sometimes the connectors get corroded or the wire separates inside the insulation.

If the batterys gone bad too old damaged cell leaking whatever it cant take the charge supplied by the alternator so there isnt enough to keep the car running and it dies. This can be an interior light radio etc. There are a few reasons that your car battery could keep dying even if your alternator is good.

Up to 8 cash back Hi there. The charging system problem might be in the battery itself or the battery and the alternator connections where the current passes. If the car battery keeps dying but your alternator is good you might be facing charging issues or trouble with a parasitic drain.

Battery keeps dying no headlights Check to make sure the power lead from the alternator to the battery has a good connection. Car battery keeps Dying but Alternator is Good December 4 2021 by Leo Carson Vehicles are designed with several components to properly function in providing maximum satisfaction to the driver. 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 alternator in your car generates the power to charge the battery. Running with accessories off you should see voltage of about 135 to 145. If its providing a good output then inspect the cable carefully.

Battery is new and alternator tested good. We help you diagnose your car battery troubles. A simple fault with any of those components can alter the pleasure derived from the vehicle.

35 views Related Answer. If the car battery is dying but the alternator is good it may be time to check the air filter. A failing alternator will have trouble charging the battery.

Then it started happening in the evenings too. What Causes a Car Battery to Keep Dying. Sounds like you may have a shortdrain of some sort.

This is known as a parasitic drain and happens. If the engine stalls almost immediately after a jump-start then your cars alternator is the likely root cause. The best quickest check I can tell you is to put a volt meter across the battery.

The alternator is weak. I thought the alternator was going bad took it to autozone and it passed their test. Cranking Troubles And Frequent Engine Stalls.

The cause of the problem can be identified and solved at home using the steps given in this article. When your car battery keeps dying but the alternator is good then you may have two problems going on at the same time. However even though the alternator is good the battery may keep dying.

Assuming your battery is good and your alternator is charging the battery properly the next suspect is a short somewhere that is leaking power when youre not using the car. Car Battery Keeps Dying but Alternator is Good The engine of our vehicle like the heart of the human body is responsible for bringing it to life. 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.

You can check the wire for continuity with an Ohm metermake sure to disconnect the wire at both ends when you use the Ohm meter. 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 most common explanation is that you have a bad battery.

This can be done by removing the cover and looking for dust debris or other foreign objects that may be clogging up the filter. I thought maybe it was a drain on the battery so I started disconnecting the negative battery terminal. Its no wonder your battery keeps draining.

Check the tire pressure. Also it could be a result of a problem in the electrical system. To check the alternator output first make sure the fuses are.

The alternator only exists to keep the battery charged. 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. Due to this fact if any accessory is left on it might continue to draw power from the battery causing it to loose power.

If the added measure of all of these drains is above the charging capabilities of the alternator your battery begins to drain itself. Because the car isnt running off of the alternator its running off of the battery. On most cars trucks and SUVs sold in the US the battery is used to engage the starter and power accessory components while the engine is not currently running.

A good indicator that you have an alternator problem is if your headlights dont come on when they are supposed to. Either you have too much accessories andor electronic or electrical peripherals. Simply put if you can drive the car for a while more than a 10 minutes and the battery is completely charged when done then the alternator is working fine.

A fault here can be detected by checking the output of the alternator. Battery is new and alternator tested good. The connection from the alternator to the battery.

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