>> When you installed the battery, was it already charged? > > Don't know. Assuming that this was the new iBook battery he bought from me (completely new BTI battery, never even opened), I'm fairly certain mine needed to be fully charged out-of-the-box. Mine's been going strong for several months now; hasn't given me any trouble. (Sorry you're having such bad luck, Marc!) BRIAN/bpearce at cloud9.net