How to Find the HP Laptop Voltage

By Nick Davis

Your Hewlett-Packard (HP) laptop is powered and charged by an external power pack that requires a specific amount of voltage, the rate at which energy is drawn from a source that produces a flow of electricity in a circuit, from an electrical outlet. When replacing your laptop's power pack, you need to know the voltage requirement. Using the wrong type of power pack can not only damage your laptop, but also cause the power pack to overheat and explode. Your HP laptop's voltage requirement is printed on the both the laptop and power pack.

Things You'll Need

  • Pen
  • Paper

Bottom of Laptop

Step 1

Close the lid on your HP laptop.

Step 2

Turn the laptop over.

Step 3

Locate the HP sticker on the bottom of the laptop. Look for the wording "Input XXXX V." The "XXXX" represents the voltage of your HP laptop before the "V," which stands for voltage.

Step 4

Write down the numbers next to the "V" on a piece of paper for future reference.

On the Power Pack

Step 1

Lift your HP laptop's power pack.

Step 2

Locate the HP sticker on the power pack. Look for the wording "Input XXXX V." The "XXXX" represents the voltage of your HP laptop before the "V" which stands for voltage.

Step 3

Write down the numbers next to the "V" on a piece of paper for future reference.

Tips & Warnings

  • Your HP laptop's voltage rating is also printed in your computer's owner's manual.