I have Compaq laptop, whenever I put it on charging it makes a very low but intense screeching sound, as soon as I switch off the charging the sound goes away. I have tried plugging in different sockets but no affect. Though it is not creating any performance trouble but still its intriguing and then I also want to know if its a serious matter!
If this happens whenever you charge your laptop, I don’t think the problem is coming from the laptop itself because there are no movable parts inside the battery that will cause that screeching sound. It is also not possible that the laptop’s cooling fan is causing the noise because it is spinning the entire time and it doesn’t have a direct connection to the charger.
You probably need to check the charger you are using because you might end up burning yourself if the problem worsens. A perfectly functioning charger will not cause any noise and will certainly not cause that noise when charging the laptop. So, for personal safety, you should replace the charger before it damages your laptop and cause personal injury.
