I had a two way pager through work, it would eat an Alkaline battery a week. I took one of my old NiMH's from 1999 (1650mAH) and it would go two weeks. They replaced the pagers with blackberry's a couple years ago because the blackberry service was the same cost and we can get our e-mail and calendar and such as well.

Does anyone remember a few years ago when one of the communication satellites used for pagers went out of orbit and a bunch of doctor's lost service, it was big news then.