Car Battery Keeps Dying But Alternator Is Good

It doesn’t matter how much juice your alternator is pumping into your battery if it can’t hold a charge. So, when your alternator tested good but the battery keeps dying, then you'll need a charging system troubleshooting.

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Why my car battery keeps dying?

Car battery keeps dying but alternator is good. Check this and let me know which one doesn't have power. You should read 13.5 to 14.7 volts. In this post, i will look at the 4 common reasons why your car keeps dying yet your battery and alternator are in good working condition.

Common reasons why car battery keeps 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. If the alternator is not charging the battery will go dead under normal operation.

Yet if you ever confront this situation, multiple reasons are contributing towards the same. You may have a parasitic load draining the battery. Some of the guys that do the.

Two days later it showed a reading of 13 volts. To undo these, there are subsequent ways to prevent the car from dying, especially if the alternator is good. When folks have car problems, they often start with starting.or a lack thereof.

What i usually suggest is try replacing the voltage regulator first, because it's dead cheap and can be done without removing the alternator. Tags battery issue battery saver dead battery. What causes a car battery to keep dying?

The most common explanation is that you have a bad battery. Most people can’t figure out the reason behind the battery getting died while the alternator is functioning properly. Test the alternator with the engine running using a voltmeter across the battery.

Charge the battery up and if its still reacting, get to a local autozone as they will wheel put a cart to your car and check your battery and alternator for free. Why is my car battery dying when it’s new and so is the alternator? Starter alternator and battery is good but the car dies all the time 1 answer.

To check the alternator output, first, make sure the fuses are good. Conduct a parasitic draw test. The alternator is essentially a generator and it keeps your battery charged while supplying additional electrical power for the other systems in the vehicle.

Some of these problems are enough to kill a battery on their own, while others are usually coupled with a battery. If it’s providing a good output, then inspect the cable carefully. The connection from the alternator to the battery.

If your car won't start or your battery keeps dying on you, that doesn't necessarily mean there's necessarily a problem with either your alternator or your battery, although that is. 1 of 2 go to page. 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 a new alternator and your battery keeps dying on you, then there's definitely a problem that you're going to need to look into. To check your alternator, try starting it up (or jump starting), and run it for a while, then disconnect the positive connection between the alternator and the battery. Most likely one or the other.

And got out for 5 minutes and get back in it still takes a second as if the battery didn't charge while i was driving. If it doesn't fix the issue, remove the alternator and have it rebuilt or get an other one that works. Cyd janine keser · registered.

I was wondering if it was a bad starter or messed up cable. You can have your car checked by a qualified mechanic or if you are up. Yes, it’s a bit strange considering the alternator is in good shape.

Now measure the voltage at the battery. In summary, a faulty alternator can drain your vehicles ‘battery. If power is getting interrupted somehow to the ignition switch and it is turned on and nothing happens the first thought is that the battery is dead, but it really can be fully charged.

First check to see of your battery terminals are corroded. A fault here can be detected by checking the output of the alternator. However, even though the alternator is good, the battery may keep dying.

Get a multimeter that can measure amps, and with everything turned off in the car, disconnect one off the battery terminals, then use the multimeter in current measuring mode to reconnect the circuit and look for a current flow. Make sure the battery has a good clean ground. If your car battery is drained after sitting for some time then you may have a parasitic load draining the battery.

If voltage drops under load, that's usually a sign of a dying alternator. Power from the battery ties to that panel and from there power is supplied to the ignition switch, which then provides power to most of the electrical devices of the car when the switch is turned on. There could be several reasons but the most likely is that you have a “leakage” current.

Battery is getting a charge too. My car is a 1996 nissan maxima. For example, poor connections, insufficient charging, corrosion, and much more.

Using a multimeter set to measure current (amps), should you have current flow between the battery and alternator (with. If so, unhook them and clean them with a wire brush until they look brand new. Autozone says alternator is good but battery keeps dying.

I bought a brand new battery i had the starter and alternator tested all is good but if my car sits over night the battery is dead the next morning i have asked a l. To test whether an alternator is draining the battery, with the car’s engine switched off disconnect the car’s electrical system leaving the battery only. Okay, the next thing to check is take your 12 volt test light or volt meter and see if you have key on engine running battery voltage at the black/orange wire and the yellow/white wire as well as the green/red wire at the alternator connector, all three need to see battery voltage.

There are a few reasons that your car battery could keep dying even if your alternator is good. Joined feb 19, 2016 · 1 posts. The alternator is bolted onto your engine and is driven by a serpentine drive belt.

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