[Duo2400] Re: duo 230 battery

[Robert R. Daniel]

Helen,

To reset the PMU (Power Management Unit), Apple recommends
first holding down the "reset button" (the on/off button on
the back of the duo) for 30 to 45 seconds.  A second method
is to disconnect the duo from all power sources including
the battery for about 10 minutes.  Some folks on the list
recommend doing these two procedures together.

In theory it wipes the computer memory completely clean,
including the power manager code.  When you reboot the
computer, it loads an uncorrupted batch of PMU code
from the system software.

If resetting the power manager does not work, the
problem is probably hardware, not software.  And the
likely suspect is the battery itself.  Apple's article
on resetting the PMU may be found here:

http://docs.info.apple.com/article.html?artnum=58416

Although you have probably taken a look at the articles
on duo batteries, I include a link to the first of
two here:

http://docs.info.apple.com/article.html?artnum=18241

My guess is that you will need to rebuild the
poorly performing battery, a fun project that will
give you a backup to your new BTI battery.

Good luck!

Robert


on 2/24/03 6:50, Helen Ross at helen at koan.de wrote:

> 
> How do I rest the powermanager?
> 
> Helen
> 
>