DIY Laptop Cooler: The best laptop cooling solution!

From our STAR Maker: Vignesh M

DIY Laptop Cooler - DIY Hacking

Hello world! In this tutorial I will be teaching you to make a simple yet very useful equipment, a DIY laptop cooler. Most of us face the daily life problem of our laptops heating up during use. And if you don’t want to spend too much on the solution, congrats. You have reached the right place. In this tutorial we will teach you to make a very simple DIY Laptop Cooler. You can make this cooler in under 10 minutes using scrap materials found right at home. This method will save you a lot of time and money as compared to buying a ready made one.

What are the stuff required to do this?

DIY Laptop Cooler - DIY Hacking

  1. CPU Fan – 3 Nos. (120~150 Rs)
  2. USB cable (from old mouse or charger)
  3. Shipping box (much better if it is a laptop box)
  4. Cellophane tape and Wiring tape
  5. Cutter
  6. Pencil
  7. Connection wires
  8. Laptop :)

How does it work?

As with most electronic equipment we use everyday, laptops pose the problem of heating. There are various methods applied to cool electronic equipment, like heat sinks and cooling fins. One of the easiest and most efficient methods is by circulating air around the device. In this method, we actively enforce air circulation around the device with the help of one or more low power fans. The movement of hot air away from the device allows cold air to take its place and transfer the heat. In this tutorial, we teach you how to make a very simple DIY laptop cooler which uses this method.

Steps for making the DIY Laptop Cooler :

1. Connect the leads of the CPU fans to a 12V battery in the correct polarity and ensure its proper working.

DIY Laptop Cooler - DIY Hacking

2. Mark the positions for the CPU fans on the shipping box and cut the marked places using a cutter. You will now have a box with three holes as shown in the picture.

DIY Laptop Cooler - DIY Hacking

3. Fix all three fans inside the box using wiring tape. Make sure that the fans are positioned such that they blow air away from the laptop that will be placed on top of the closed box once the cooler is completed.

4. Now cut one end of the USB cable so that you can access the four wires coming from it. Insert the USB cable to the laptop and identify the Red wire (power) and Black wire (ground) of the cable by connecting it to one of the fans. Group the positive and negative leads of the three fans separately and connect them to the respective ends of the USB cable.

DIY Laptop Cooler - DIY Hacking

5. Using the pencil and cutter, cut a few holes on either sides of the box. This will help in proper circulation of air. Take the USB cable out through one of these holes.

DIY Laptop Cooler - DIY Hacking

Congrats!! You have now finished making your DIY laptop cooler. Below is a picture of the finished product.

DIY Laptop Cooler - DIY Hacking

You have seen how easy and fast it is to make a DIY laptop cooler with household stuff. Go ahead and make your own!!  :)


Vignesh M

Vignesh M – STAR Maker at DIY Hacking

-Vignesh M.

A Software Tester (Software Engineer) by profession, I am a DIY & IoT enthusiast who is zealous to learn new technologies.

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