Can a car battery check good and still be bad?

As long as battery voltage remains above 9.6 volts, the battery is considered “good.” But if it drops below 9.6 volts by the end of the test, the battery may be “bad,” or the battery may have to be recharged and retested if it was not fully charged prior to the test.

Does AutoZone lie about car battery?

There are 2 ways for Autozone to test your battery. You drive the vehicle to them and they have a handheld tester that theyuse to test the battery in the vehicle. Depending on battery location you can get a false reading. If they cannot connect to the +/- post on your battery then it’ll give a false reading.

How do you know if your car battery is faulty?

The most common symptoms that come with a bad battery include:

1. Battery light illuminated on the dashboard.
2. Engine cranks slowly when starting.
3. Vehicle requires frequent jump starts.
4. Clicking when you turn the engine.
5. Lights are dim.
6. Car won’t start.

How long does it take AutoZone to check a battery?

The Free AutoZone Battery Test Begins After a couple of adjustments because the cables weren’t connecting properly with my battery’s positive and negative terminals, the test began. The whole reading took two to three minutes.

How long do AutoZone batteries last?

Typically, a car battery will last between three and five years. Pushing a battery longer than five years, even under perfect driving conditions, could cause your battery to fail without notice.

Can AutoZone test a disconnected battery?

If you’re having car battery trouble, it’s time to head to your local AutoZone for free battery testing. If the battery is discharged but still technically sound, we can charge up the battery so you can be on your way. If the battery fails the test, we can help you find a suitable replacement.

Is it bad to charge car battery to 50%?

This could be a problem if you can’t actually charge your battery fully (only to 50%) and you don’t drive your car on a particularly regular basis (every two weeks). It depends.

How can I tell if my car battery is good or bad?

A good battery is one that will hold a charge. A bad battery is one that will not. Step 5: Charge your battery. If your battery has a low state of charge, the next step it to recharge it and test it further. This can be done with a portable battery charger, or by charging your battery with the alternator.

What should state of charge be on car battery?

If your battery is greater than 12.45 volts it is sufficiently charged. Anything below that should be recharged and tested with professional test equipment. Note: A state of charge test does not indicate whether your battery is good or bad. It only indicates the current state of charge.

What should I do if my car battery is low?

A battery that has a low state of charge may still be good after it is recharged. A good battery is one that will hold a charge. A bad battery is one that will not. Step 5: Charge your battery. If your battery has a low state of charge, the next step it to recharge it and test it further.

Why did AutoZone test the battery on my car?

However i had them test my battery because after not starting the car for a few days, the battery was too weak to start the car. They said the battery was fine yet i later bought a specific gravity tester and found it had one bad cell and had to replace the battery.

What does it mean when your car battery is dead?

Not all batteries will give you warning signs that failure is coming, but sometimes they do. While a “dead” battery is often defined as a battery that simply cannot start the car, Below are several things that could indicate a bad battery, and if you see them, you can always visit an AutoZone store for a free battery and charging system test.

What to do if your car battery is bad?

Visit your local AutoZone store for a free diagnosis. If you’re having car battery trouble, it’s time to head to your local AutoZone for free battery testing. If the battery is discharged but still technically sound, we can charge up the battery so you can be on your way. If the battery fails the test, we can help you find a suitable replacement.

Is there a way to really test a car battery?

Auto battery tests out as GOOD (dealership & AutoZone both tested it) – but it will not hold a charge. Is there any way to really test a car battery so you can be sure it is still good? I assumed that the test equipment used puts a load on the battery as part of the test.