how do i change my power supply

[Guest]

I have a laptop and usually runs on battery with ac power as a backup and to
charge the battery. for the past 2 days my battery is showing 75-100% power
but i cannot either switch my pc on or alternatively, if on, when the ac
power is removed the computer immediately shuts down. I have looked at the
power supply icon but i don't know which one is to turn it back to battery
power, please help.

 

[DL]

Usually a Laptop switches automatically to battery when AC disconnected.
What make/model of Laptop?
Allthough perhaps, assuming win boots when on AC, youve amended your WinXp
Power Settings in some way to only use AC

 

[Guest]

sounds like a bad battery because when you remove the ac, the system shuts
down instead of running on the battery.... if you remove the battery, you
would see the same results if you pulled the ac plug....

 

[Guest]

i think i must have amended my power settings, i'm not sure how to check or
to reset, can anyone help?

 

[Guest]

acer 1360

Usually a Laptop switches automatically to battery when AC disconnected.
What make/model of Laptop?
Allthough perhaps, assuming win boots when on AC, youve amended your WinXp
Power Settings in some way to only use AC

 

[DL]

Control Panel > Power Options

i think i must have amended my power settings, i'm not sure how to check or
to reset, can anyone help?

 

[Guest]

i can get that far but not sure which was is for battery power with ac power
as backup, i have tried them and then unplugged but it switches off, do you
know what to do step by step