Car Battery Keeps Dying but Alternator Is Good

If your car battery keeps dying, but the alternator is good, you may be experiencing a problem with the starter motor. This part is responsible for turning over the engine when you start your car.

To troubleshoot a bad starter motor, first, check whether or not it’s engaging at all. If you have a manual transmission, get into your vehicle and turn the key to the start position. If your engine turns over, then all is well! You don’t need to replace anything.

If it doesn’t engage at all and there are no lights on in your dash, then this indicates that there’s a problem with your starter motor or solenoid. You’ll need to replace either of these parts or both if they’re not working together correctly.

What are some reasons my car’s battery may be dying?

If your car’s battery keeps dying, there are a lot of reasons it could be happening. The most obvious reason is that the battery itself is bad the cells are dead and unable to hold a charge, or maybe they’re just not leaking enough power to start the car.

It’s also possible that your alternator has failed. If this happens, then even though your battery may be good, your car won’t have enough power to run all its electronics and get started.

This can happen if you’ve been driving through an area with lots of stoplights or idling in traffic for a long time. Another possibility is that something else in your vehicle is draining power from your battery when it shouldn’t be maybe the light is left on or something like that.

The easiest way to find out what’s going on is probably just to take it into an auto shop and ask them to test both your alternator and your battery so you know which one needs replacing.

What are the steps to diagnose and repair a dead battery in my car?

Check your battery with a voltmeter. If the voltage is below 12.7 volts, then it may need to be replaced. If it’s above 12.7 volts, then you should check for shorted cells, which can happen if you leave the lights on or if you use jumper cables incorrectly.

Check all of your fuses and make sure they haven’t blown out due to excessive current draw from elsewhere in your vehicle. If this is the case, then replacing them shouldn’t be too expensive around $10-$15 per fuse box cover at most auto parts stores, and should repair any electrical issues that might have been causing problems for other parts of your car as well.

If none of these steps work and you still have issues with your car battery dying out frequently, then it could be time to replace it altogether. We recommend checking out this helpful guide on how

Why alternator is good?

The alternator is a small, powerful electric generator that supplies electricity to the car’s electrical system. It charges the battery, which stores energy that comes from the alternator.

The battery then sends that energy to the starter, turning it over so you can start the car. The alternator is usually located in front of the engine, behind the fan belt and pulley.

The belt turns the pulley on top of the alternator, which spins fast enough to generate electricity for your car’s electrical system. If your battery keeps dying, but you know your alternator is good, there are a few possible causes for this problem.

Bad connections: Sometimes corrosion builds up on connections between the battery and other parts of your car’s electrical system. This can cause poor electrical flow throughout your vehicle and prevent it from starting properly.

The alternator is working but may need not replaced

The most common cause for battery dying often involves a problem with the alternator. The alternator is responsible for charging the vehicle’s battery and providing power to the onboard electrical system while you are driving.

If your car battery keeps dying, the first thing you should check is whether or not your alternator is working properly. To test your alternator, start by disconnecting the battery terminals and connecting them together with a wire.

Then start the engine and monitor your voltmeter while revving up the motor. If your voltage drops below 13 volts at any time during this test, then there is probably an issue with your alternator or voltage regulator. If not, then it could be another electrical component like a fuse or relay that needs replacing.


if your car battery keeps dying but you know that your alternator is good, then it’s likely that you have a faulty battery. If this is the case, you should have your battery replaced as soon as possible.

Steven Hatman
Steven Hatman

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