How to Find the HP Laptop Voltage

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.

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Power transformer

Bottom of Laptop

Step

Close the lid on your HP laptop.

Step

Turn the laptop over.

Step

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

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

On the Power Pack

Step

Lift your HP laptop's power pack.

Step

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

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