[comp.sys.ibm.pc.hardware] Question re: AT CMOS/Clock Battery Backup

sip1@quads.uchicago.edu (timothy francis sipples) (10/25/90)

Well, for the second time since late 1987 I'm looking at replacing the
battery inside my AT.  The clock is slowing down incredibly.

However, I thought this time I'd pose a question to the net experts.  I
have heard of some sort of device (from Rayovac?) which automatically
recharges while the power is on and supplies power to the CMOS/clock
while the power is off.  Does anyone know where I can acquire this
device or something similar?

Also, is it at all unusual to have to replace the battery every year or
year and a half?  Is a slow clock the normal symptom of a dying battery?
Or could there be some other cause?  (The clock, by the way, is a tad
too slow even with a new battery.  Not horrible, I admit, but still slow.)

Please mail responses -- I'll summarize to the net if interest warrants.

Thanks in advance.

Timothy F. Sipples		sip1@quads.uchicago.edu
T.F.S.