Having rebuilt a couple of Duo batteries, I can guarantee that this method will break something inside the case, as there is just barely enough room to get the cells and wiring in the case. Any extreme pressure such as a vise would produce would surely cause damage to the battery. Tom on 2/25/03 9:47, Jerry Wolford at wolfman at northstate.net wrote: > List friends, > > I have not tried this on batteries, but I have on the Apple brick power > supply modules when the cord shorts out. To open those up, I place it in a > vice with the seams on the long axis facing the vice jaws and squeeze and > release a few times. The case actually bulges a little. This action causes > the glue bond to break. I have opened up two this way and it might translate > to a battery pack also. You have to use something to pad the sides to > prevent the metal from cutting into the plastic. > > Hope this helps! > > Jerry