notebook, broken battery, display turns off

Notebook batteri is finished. After some secs the display turns off (notebook
is connected to kabel power).
If the display is closed down, and opened again, the display turns on again
for some secs, and turns off again.
Hitting the batteri icon, which is always red crossed, windows prompts
that batteri has low performance and the computer may shut down anytime.
But the computer doesn't shut down, the display turns off.
Running the computer without the batteri doesn't work, the above happens.
Q: Is there a way to set windows 7 to ignore the defect batteri, and run
on wired power?

Thanks.

Remove the battery, & use mains power only.

theog said:

Remove the battery, & use mains power only.

As I wrote, running the notebook without the batteri makes no difference.
Error still there.