This message was posted by fugazi, posted on September 21, 2001 at 04:46:00 coming from 65.32.70 I dont know how long they last but I opened it up and its a Varta Ni/Cd 3/V 609 3.6 v 60MAh 14h 6MA
That is what is written on it.. I went to varta website but it doesnt list that battery.. Anyone swap this out or know the lifespan of it? thx