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Randall, I purchased a second battery when I got my 560. I used both, swapping frequently. The one that shipped with the unit has worked fine, but the 2nd did exactly what yours did. I called and IBM replaced the battery with a new one. Charles S. Swartz Program Manager Dept. of Entertainment Studies & Performing Arts UCLA Extension cswartz@unex.ucla.edu 310-825-9634 Phone 310-206-7435 Fax > -----Original Message----- > From: Randal Whittle [SMTP:rwhittle@usa.net] > Sent: Thursday, December 04, 1997 10:35 AM > To: TP List > Subject: 560 Battery > > Has anyone had a 560 battery--or any other lithium-ion batter--just > suddenly go completely dead on them? > > I have 2 batteries for my TP 560 and generally I just swap between > them > every now and again. Unless I'm going on a trip where I want both > batteries, I pretty much just leave one of them on the shelf, with the > occasional swap just to keep both of them exercised. > > Is it possible to leave one on the shelf for too long? I think its > been > perhaps as long as a couple of months since I last swapped batteries > around > and now that I put my #2 battery back in, the system just plain > *won't* > charge it. Its not as though the battery won't "hold" a charge, its > that > it *never* GETS charged to begin with. System still works fine with > my #1 > battery. > > Now I've had batteries slowly die from constant cycling (the 750 > series was > guilty of this), but I haven't had a battery outright die just from > sitting > there for so short a time. It worked fine when I last used it! > > Help? Advice? Similar experiences? > > > ------- > Randal J. Whittle whittle@usc.edu (213) 740-7775 > Director, Electronic Commerce Program > Marshall School of Business, University of Southern California