How to Check Your Battery Voltage

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Checking the voltage of your car battery can be an easy way to tell if it needs a charge or maybe even a jump-start. It can also tell you if there may be a problem with one of the components powering your vehicle.Battery2

If you’re skeptical about trying this process yourself, call us at Norm Reeves Honda Huntington Beach for battery service in Huntington Beach, CA. You can schedule an appointment conveniently online.

Before you get started, you’ll need to pick up a voltmeter. This device measures how much voltage passes between two points by using positive and negative input terminals. There are a number of home improvement stores around Newport Beach, Costa Mesa, and Fountain Valley where you can buy one.

Now you’re ready to start checking the battery.

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Checking the Battery Voltage: Method A

After confirming the vehicle isn’t running, remove the positive terminal cover on the battery.

Grab your voltmeter and connect the positive end to the positive terminal on the battery. The positive end is typically designated by the color red but refer to the users manual if you’re not sure.

Now connect the negative end of your voltmeter to the negative battery terminal. The negative end is usually black. Once everything is securely connected, allow your vehicle to sit for about eight hours.

You can check the voltage overnight if you need your car during the daytime.

After your vehicle has sat for a considerable amount of time, check your voltmeter. A properly functioning battery should produce about 12.4 to 12.7 volts of power. Anything lower than 12.4 means the battery needs to be charged or has malfunctioned.

If there’s no reading, you may need to replace the battery, but be sure to have your vehicle inspected by a professional first.

Method B

If you’ve just charged your vehicle’s battery or gotten a jump-start, then you’ll want to go with this method of checking your battery.

First, make sure the car is idling. In other words, no one should be revving the engine. Next, connect the voltmeter in the same way as you did for Method A.

Now, instead of waiting eight hours, you can actually check the voltmeter right away. There should be a reading somewhere between 13.5 and 14.5 volts. You may even have a higher reading than that, depending on the system.

However, if you see a reading below 13.5 volts, then you have a problem. To put it simply, the alternator isn’t producing enough of an electrical current to charge the battery. This could be the result of a faulty regulator or even just a poor connection.

Battery Repair in Huntington Beach, CA

For expert Honda service in Huntington Beach, schedule a service appointment at Norm Reeves Honda Huntington Beach. We serve the communities of Fountain Valley, Costa Mesa, and Newport Beach with professional and reliable automotive services. We also have a large inventory of batteries on hand in case your vehicle needs a new one.

In addition to new batteries, our technicians can charge, clean, or repair your car battery if needed.

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