How to Wire a Dell Laptop Power Supply

Written by james stevens
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Your Dell laptop includes an external power supply so you can recharge its internal battery and use your laptop at the same time. Internal laptop batteries don't last long before they need recharging, particularly if you have a lot of applications running, so it's essential your external power supply is ready to use. If you find that the power supply jack that connects to your laptop is faulty, rewire the jack.

Skill level:

Things you need

  • Soldering iron
  • Solder

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  1. 1

    Turn off your Dell laptop external power supply. Unscrew the cover from the power jack that connects to the power socket of your laptop and slide the cover up the wire a few inches. Locate the one or two loose wires that need resoldering to the power jack terminals.

  2. 2

    Heat a soldering iron. Place the black negative wire on the negative terminal of the power jack. It's marked "-." Touch the terminal and wire using your soldering iron. Put the solder on the wire and let it melt. Remove the soldering iron and solder. The solder hardens and the wire is securely attached.

  3. 3

    Repeat the process and attach the red wire to the positive terminal marked "+" on the power jack. Let the jack cool. Turn off the soldering iron.

  4. 4

    Slide the cover down the wire and screw on the cover on the jack. Insert the jack into the laptop power socket. Turn on the laptop power supply to charge your battery and use your laptop.

Tips and warnings

  • If your power supply does not charge your laptop after completing the steps, get the power supply checked or replaced.

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