Question: What Voltage Is Low For A Car Battery??

Check the reading to see the current voltage of your car battery.

Anything lower than 12.2 volts, and it’s identified as a bad battery.

What is the voltage of a dead 12 volt battery?

Playing in between the voltage charge ratings between 12.1 volts to 12.9 is a safe place—12.4 being an ideal to keep maintenance.

Is 12.4 volts OK car battery?

Though not fully charged, a car battery is considered charged at 12.4 volts or higher. It is considered discharged at 12.39 volts or less. Note: A fully charged specific gravity of 1.265 corrected to 80°F is assumed.

How to Tell if a Car Battery is Bad –

What is a low car battery reading?

In other words, a battery might have a low charge (and therefore a low voltage) but still be a healthy battery. Performing a load test is a reliable check of the battery’s internal health.

Can a car battery be bad even if it reads 12 volts?

If the voltmeter reads 12.4 volts or higher, the battery is fine and the problem lies elsewhere. Start your car. If the vehicle is reluctant to “turn over,” it could mean that the battery lacks the cold-cranking amperage (CCA) to start the car.

What voltage is too low for car battery?

It needs at least 12.9 volts to charge, but at this voltage the charge rate of an automobile battery is very slow. A car battery can be charged safely at high voltages as long as the battery is not fully charged.

12.6 volts

How low can a 12 volt battery go?

When any 12-volt battery is discharged below 12.4 volts, sulfation begins to occur within the battery. Over time, this sulfation will diminish both the performance and lifespan of the battery. Regular use of a quality battery maintainer will keep batteries properly charged and extend their useful life.

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