iBook Battery - again....

pds

Registered
This could probably go in the hardware section, but I think it's software related.

Back at the 2.4 update, many had terrible trouble with battery life - after the update the computer would shut down directly after the battery drained to 88% or 85%.

Since then I take my battery out with updates, including 3.3 (don't want to go to 3.4 for some reason). But after the 3.3 update my battery is acting strangely. It drops directly from 22% to 0, no warning that it is about to sleep. When charging it often (not always) goes from 78% to 100% straight away.

I still have over 2.5 hours when working - 5 when just sitting or projecting (sleeping now and then), but it is a bother that it shuts down (sleeps) without warning.

I have tried the reconditioning thing (full charge after the forced sleep), to no avail. Is there a plist I could try trashing to set things straight or is my battery toast again?
 
Did you fully charge it and then let it drain in the single user mode? In that mode, there are no powersaving options active and the battery will drain to the last drop. Also try to reset the PMU. It happenes to my tibook from time to time but after full charge and drain in single user mode, everything works fine again.
 
Sounds like fun, I'll get out my man man s and ssh how to's and dive into terminal level for a couple hours.
 
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