Hi Sharron. I'm glad you like the direction the unit has gone over the last couple years. Let me say that I think you will also be pleasantly surprised with the future of the device. I have had Book Port serial number 2 for years without any battery contact problems either, and I doubt there are many people that read more than I do on the device, but I have seen contacts come in in so many conditions that I would also be very hesitant to use the springs as well. >>> scfinchum@xxxxxxxxxxxxx Wednesday, February 01, 2006 10:48:50 PM >>> Larry, I have never had any problem with the contacts. My unit was one of the first and I couldn't guess how many times the batteries have been changed. Triple A batteries are thinner. Rechargeable may be more economical. As I have mentioned before, there are times when charging batteries is out of the question. One of the reasons that I think that the spring type of connection may be better is because there isn't any question of which direction the battery installs. Thin would be nice, but only if the batteries were easily obtainable and near the price of current batteries. Of course, now that I have a Book Port addiction, I have to have my Book Port fix every day. The simple reading machine that I found so amazing three years ago has become so much more. You and the Book Port staff have my admiration and appreciation. Make it a grate one Sharon