12-08-2008, 10:22 PM
The SE PRAM and clock did not take very much to power them compared to later Mac's. So it is not too surprising. Also, as I recall, some of the early PRAM batteries were not the current non-rechargeable LiIon batteries, but one of the long life chemistries such as silver-oxide. I personally have not seen one go 18 years, but have seen a number go into the 10-12 year range.