You can check the power supply on your PC by removing the side panel of its case, or by checking the manual that came with it ...
You can check your CPU usage on a PC or Mac using programs already installed on your computer, like the Task Manager and ...
On Windows 11, if your laptop's battery is draining quickly, the issue could be an application sucking all the energy and not a problem with the battery itself. If you're not sure, you have multiple ...