How to Test a Car Battery Voltage

As a responsible car owner, you want to know that you're doing everything you can to maintain your vehicle's performance. One way to do this is by regularly checking your car battery voltage.

Many people don't give their battery a second thought until there's a problem, which is a great way to end up stranded with a dead battery. On the other hand, if you check your voltage, you'll be able to correct issues before they get out of hand and ensure the optimal functioning of your car.

Follow these steps to check your car battery voltage so you can keep your battery and your automobile operating the way you need them to.

Gather Your Tools

When you need to check your car battery voltage, it's key that you have the right tools. With the right equipment, you'll be able to effectively check your voltage while staying safe.

First, you'll need a voltmeter, which is the tool that will actually read your battery's voltage. Second, for your protection, you'll need safety glasses and gloves.

Once you have your tools in hand, you can move on to checking your voltage.

Check Your Car Battery Voltage

Before you begin, it's crucial to ensure that your engine is turned off and your key is out of the ignition.

Pop the hood of your car, locate the positive terminal cover of your battery, and remove the cover. If there's corrosion or debris on your battery's terminal, clean it before proceeding.

Attach the positive lead of your voltmeter, which should be red, to the positive terminal of your car's battery. Next, attach the negative lead of your voltmeter to the corresponding battery terminal. With your leads firmly attached, you can check the voltage.

Ideally, when reading your voltmeter, you'll see a voltage of between 12.4 and 12.7, which is the proper volt range for a car battery. If the reading is less than 12.2 volts, your battery needs to be charged. If you see a reading above 12.9 volts, you'll need to drain the excess charge by turning on your vehicle's high beams. When a car battery has excess voltage, it usually means there's a problem with your alternator.

If your car battery's voltage is too low or too high, it's best to get help from a maintenance professional. A service technician can fully test your car's battery and determine if you need a new one.

Visit a Service Professional

If you regularly check your car battery voltage, you should be able to prevent charging problems and keep your car running. And if you need a full battery test performed, you should get help from the professional service team at Audi Devon.

Schedule battery repair with us online!

We're committed to making sure that our customers' cars always run the way they should, which is why we provide a service team that can handle an array of tasks, including checking car battery voltage.

If you're a driver from Devon, Wynnewood, or West Chester, visit us today for your automotive needs.

Make an Inquiry

Hours

  • Monday 9:00am to 8:00pm
  • Tuesday 9:00am to 8:00pm
  • Wednesday 9:00am to 8:00pm
  • Thursday 9:00am to 8:00pm
  • Friday 9:00am to 6:00pm
  • Saturday 9:00am to 5:00pm
  • Sunday Closed