Try flexing the machine ever so slightly and applying a little more inward pressure on the battery. Perhaps one of the contacts is losing its connection with the board. Josh > From: Tom and Lisa Peters <gionpeters at comcast.net> > Reply-To: "A place to discuss Apple's sub-portable computers." > <duolist at listserver.themacintoshguy.com> > Date: Mon, 9 Oct 2006 07:04:53 -0400 > To: "A place to discuss Apple's sub-portable computers." > <duolist at listserver.themacintoshguy.com> > Subject: Re: [DuoList] 2400 power probs > >> If by not recognized you mean you get a red "x" over the battery >> icon in the menu bar. >> >> That means the charging circuit is gone, usually a $150-200 repair, >> because you must replace the >> power I/O board. >> >> Good Luck >> Brian > > It could also be a blown battery fuse. About $1 in parts + time to rework. > > Mad Dog