How to Check Your Battery’s Voltage


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Many people don’t think to check their vehicle battery’s voltage or even know how to do it. Unfortunately, this increases your chances of experience a vehicle breakdown or having a dead battery.

With that said, it’s best to take the time to regularly check the voltage of your vehicle’s battery, and doing so is easier than you may think.

Norm Reeves Honda Superstore in West Covina has provided a step-by-step guide to checking your battery’s voltage to make sure your vehicle keeps running well. If you need battery services in West Covina, contact us today or schedule a service appointment conveniently online.

  1. Get a voltmeter: A voltmeter measures the power level of your battery.
  2. Remove the positive terminal cover: Open the hood of your car and find the battery, then locate the positive terminal and remove the cover. The positive terminal cover should be marked with a +, but if you have a tough time finding it, look in your owner’s manual for more information.
  3. Attach the red wire of the voltmeter to the positive terminal: The positive wire of the voltmeter is usually red.
  4. Repeat steps 2 and 3 with the negative terminal: Once the positive wire is attached, attach the negative wire to the negative terminal. It’s important to note that the wire you connect to this terminal shouldn’t be the same one you connect to the positive terminal. The negative wire should be black.
  5. Keep the voltmeter connected to your battery overnight: To accurately determine your battery’s voltage, keep the voltmeter connected overnight. Don’t remove the wires or drive the car. Just let it sit in your garage or driveway so you can get an accurate reading.
  6. Check the results: The next morning, check the results on the voltmeter. If your battery measures 12.4 to 12.7 volts, then it’s okay. If it measures lower than 12.4 volts, schedule a battery service replacement at Norm Reeves Honda Superstore in West Covina.

Important Precautions

Though it’s fairly simple to check your battery’s voltage, it can still be dangerous. So here are some precautions you need to take when you want to check your battery’s power level:

  • Turn off your vehicle.
  • Wear gloves if you have them.
  • Keep yourself grounded.
  • Take your time.
  • Consult a professional first.

If you connect the wires improperly, you could end up damaging your vehicle’s computer systems, and you could face dangerous electrical shocks. So follow each step correctly and carefully, don’t rush, and take the precautions necessary to check your battery’s voltage safely.

If you see that the voltmeter reading is too low after you’ve completed this process or you’d like more information about how to check your battery’s voltage, be sure to schedule a battery service or replacement at Norm Reeves Honda Superstore in West Covina. Our service department can be found at 1840 East Garvey Ave. South in West Covina near Baldwin Park, Pomona, and Pasadena. So don’t wait – stop in today and ask our experts about scheduling your service appointment today.

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