How do i check to see if a notebook battery is dead ?

For Windows devices you will know your laptop battery is dead when there is a red “X” over your battery icon. When you click on this icon you will see a message that says “plugged in, not charging.” This is the point where you should get the manufacturer recommended part to replace your battery.

You asked, how do you check if a laptop battery is working or not?

1. Unplug the power cord.
2. Turn off the laptop.
3. Press the power button to restart your laptop.
4. Press the Esc key immediately, once the laptop powers up.
5. The Start Up menu will appear.
6. A list of diagnostics and component tests should pop up.

In this regard, what are the signs of a dead laptop battery?

1. Getting too hot when charging, especially along the bottom of the case where the battery is located.
2. Losing charge quickly.
3. Taking too long to charge.