Previously, Ian McCall wrote:
I have a problem with my Powerbook, but before I rush off and buy a new battery I thought I'd check here.
Oh, and although they take a bit of a bashing sometimes I have to give the Apple help people top marks for today's efforts. The first person, a French man, described how to reset the PMU and try things again.
Did you try that?
And there was battery update for PB 12" some times ago. Check via SoftwareUpdate...