short battery life in iBook

It starts at 100%, will go down slowly first & then suddenly fall to 0.
Uli Wienands wrote on :

Battery life in my wife's 1-year-old iBook has reached 15 min for a full charge. It starts at 100%, will go down slowly first & then suddenly fall to 0.

In my own Pb 520 this indicates corruption of some values in the "intelligent" batteries. I can run various utilities to get the battery back to normal. Are there any such utilities for the iBook?? I am thinking the likes of LindBU500, Emmpathy 2.1 or even Apple's Battery recondition.

Uli

matt neuburg replied on :

In uli-1108032333550001@redacted.invalid Uli Wienands wrote:

Battery life in my wife's 1-year-old iBook has reached 15 min for a full charge. It starts at 100%, will go down slowly first & then suddenly fall to 0.

Check the archives (and MacFixIt), as this has been much discussed. Some say that nvram reset can help. m.