[comp.sys.att] 3B1 battery

tien@speedy.cs.wisc.edu (PB Schechter) (07/26/88)

My 3b1's battery stopped keeping time over power-downs, so I have decided
that it needs replacing.  I opened the box and found the battery and, to
my dismay, it is soldered in place.  I'd rather not solder a new one in
place; has anyone solved this problem before me?  What I'd like to do is
cut the leads, solder them to a battery holder, and snap a new battery
in place.  Is it possible?  Does anyone have advice concerning sizes, or
model numbers, for parts?  I remember a discussion of this topic about
6 or 8 months ago, but didn't save it.

Thanks; please e-mail replies, unless you think this is of general
interest.

PB Schechter
pb@cs.wisc.edu

UH2@PSUVM.BITNET (Lee Sailer) (05/18/89)

Is there a battery for the clock in the 3B1, and if so, where is it?

thanks.  lee

jep@oink.UUCP (James E. Prior) (05/18/89)

In article <89137.135604UH2@PSUVM> UH2@PSUVM.BITNET (Lee Sailer) writes:
>Is there a battery for the clock in the 3B1, and if so, where is it?

Yup, it is soldered on the motherboard, about 2 or 3 inches from the left and
about half a foot from the front.  Don't flame me on the dimensions, I doing
this from memory.  Most of the batteries I've seen are lithium coin cells.  
I've also seen some cylindrical lithium batteries.  There is a jumper close
to the battery that should be disconnected during long periods of storage,
but it's so damn awkward to open the machine and close it back up, that no
one (not even AT&T) does it.
-- 
Jim Prior    jep@oink    osu-cis!n8emr!oink!jep    N8KSM