Battery logging?

[thinkpac]

Is there any way in Windows XP to have an entry get added to the Event Log (or any kind of log) whenever my T60 laptop switches to battery power or switches back to AC power?

Similarly, I'd also like to know if there's a way to log whenever the laptop goes into standby or hibernation.

[jdrou]

I've been looking for a way to do this for a long time now. Seems like it should be a simple thing to do but apparently not.

[thinkpac]

I found this thread where a person says you can enable logging for hibernation in the audit settings in group policy:

http://www.tek-tips.com/viewthread.cfm? ... 444&page=2

But I opened gpedit.msc and found the Audit Policy settings (under Computer Configuration\Windows Settings\Security Settings\Local Policies), and there's nothing for hibernation.

[jdrou]

Might be able to kludge something by using the task scheduler. It has settings for tasks to stop (or not start) if the computer is on battery power.

EDIT: This might be useful: http://batterysaver.codeplex.com/ (open-source too)