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Laptop Power Adapters for HP

The built-in battery of a laptop computer allows you to do on-the-go computing. A laptop computer does not need to be connected to a wall outlet at all times, but it must occasionally be plugged in to recharge its battery. Hook your HP notebook computer up to power with a laptop power adapter.

How do you know what voltage your charger should be?

Different HP notebooks require different voltages. Therefore, it is important to consult the label on the computer or your current charger to determine which voltage is correct for your laptop. On the label, look for the word "Input." It will be followed by a number and the letter "V." The number between "Input" and "V" is the voltage rating. Notebook chargers may range from 11 to 24 volts.

Why does a laptop's style of connector tip matter?

The DC connector tip that attaches the charger to the computer is not the same shape on all the brand's notebooks. When purchasing a replacement charger, the style should match that of your original unit. Here are some things to consider:

  • Angle: Some connector tips sit at a 180-degree angle to the rest of the power cord. Others sit at a 90-degree right angle to the cord.
  • Shape: Some connectors, such as those for an EliteBook, are round. Others have an oval shape.
  • Size: The brand's connector tips can vary in size by a few millimeters. Even if a replacement tip looks the same as yours, it is important to verify that it is the same size.
What is a universal charger?

Some units come with interchangeable connector tips so they will work with a variety of computers. If a universal kit includes a tip that is the right size and shape for your EliteBook or other Hewlett Packard notebook; the kit may work for your power needs. Keep in mind that the "universal" designation applies only to the tips; a universal charger must still match the voltage of your computer.

How do you prepare a new laptop charger for use?

A power supply for a laptop has two parts. The first is the AC adapter. It looks like a rectangular box with a cord that ends in a connector tip. The other is the power cord, which has a plug on both ends. One end plugs into the AC unit, and the other plugs into the wall. Use the following steps to prepare these components for use:

  • Confirm that the voltage and connector tip match your computer's requirements.
  • Unwind the cords of both components.
  • Plug the DC connector tip into the computer's power connection.
  • Connect the power cord to the AC unit by inserting the cord's plug into the matching slots on the adapter.
  • Plug the other end of the power cord into a nearby wall outlet.
Content provided for informational purposes only. eBay is not affiliated with or endorsed by HP.
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