how to see! wattage consumption for a T400, windows XP

[T400plus]

how to do the settings ?

[dr_st]

Click Power manager battery gauge taskbar icon. A menu will pop up. Choose Show -> Wattage when on battery. Only works when the battery is discharging.

[T400plus]

No, I have only 2 options.times remaining or %.
I had to reformat and use the services of the colourful button above f4. I updated all drivers and also some software which i downloaded seperatley from lenovos site.
In my old setup I had a old manager and from this group I had applied some settings in the registry.I have forgotten what that was and how
to search for it again.
I will try again ...