Hibernate on dead battery

[Ken]

I recently upgraded to Jaunty and I'm quite happy with it but there are a 
few little hiccups that I would like to resolve.  Most importantly, 
Jaunty doesn't hibernate on battery failure.  I've set the correct 
option, but I think the OS has an over estimate of the time left before 
it needs to hibernate.  Is there anyway to tell it to go ahead and 
hibernate when there are 10 minutes of battery life left or something 
similar?  

Thanks!

-- 
Ken <ktxl45 at gmail.com>