Laptops that have become part of our lives need direct current in order for them to work properly or at all. On the other hand, the power outlets you have in your home give you alternating current. It is impossible to make your laptop work on that type of current and so you need the power supply or AC adapter. The AC adapter accepts the alternating current from the wall outlet and converts it into direct current so the laptops can use it. Sometimes, your power adapter might start to act up but you need to make sure that it’s the power adapter acting up.
Most manufacturers put an LED light on their power adapters so you can always know when the power adapter is plugged in and when not. If the LED light has suddenly stopped working, it could be an indication that your power adapter is not working. However, it could also be a problem with your wall power outlet. Change the power outlet, plug the power adapter in another outlet and see if the LED turns on. If the LED turns on, then your power adapter has no problems. If the LED light still does not turn on, the adapter might be out.
In this case, you will have to look for laptop power supplies in a computer shop near your house or online. With online shops you can get more options and it is easy to find the right adapter without running around here and there. Sometimes your power adapter will be showing the LED light on and charging the laptop, but your laptop will be getting really hot. At times the adapter will be hotter than usual. In this scenario, you will need to perform some multimeter checks in order to find out the problem.
A multimeter can be set to a higher voltage than mentioned on your power adapter to perform the tests. You will put the red cable in positive slot and black cable in the negative slot. Next, you will put the red jack into the barrel shaped power adapter pin and keep the black one touched to the outer surface of the barrel. If the voltage shown by your meter is what you see at the bottom of your power adapter, things are fine and vice versa. You have to look for a new laptop power adapter if the rating is too high or too low.
In rare cases the pin inside the slot that’s on your laptop might become bent. In this scenario a little wiggling of the power adapter jack causes it to work. You will have to take your laptop to a technician because your power adapter is working fine but your pin in the laptop is acting up. When you feel that there is something wrong with your power adapter, you might want to check some other power adapters in a repair shop and check yours again. If the other one is working fine but not yours, your adapter has expired.