Larry-- I have had clip-type contacts break from metal fatigue (at the bend) in other devices. I have replaced them with springs when that happened, and none of the springs have failed. In fact, I have never had a spring-type contact fail. Nick Baker Assistive Technology Coordinator nick.baker@xxxxxxxxxxxx 406-243-2234 (Voice/TTY) 406-243-2663 (Voice only) Disabilty Services for Students The University of Montana EL 154 32 Campus Drive Missoula, MT 59812 -----Original Message----- From: LARRY SKUTCHAN [mailto:lskutchan@xxxxxxx]=20 Sent: Wednesday, February 02, 2005 2:06 PM To: bookport@xxxxxxxxxxxxx Subject: [bookport] Opinion Needed What do you all think of the merits of spring based battery connections vs =3D the clip type connectors currently used on Book Port? One appealing thing about the springs, of course, is the fact that it is =3D easier to identify the correct orientation of the battery, but what about =3D the possibility of damage to springs? The clips don't seem nearly as easy =3D to break.