ken1@killer.UUCP (Ken Ihrig) (05/22/88)
Whenever I turn my computer off, the time gets reset. I assume that the battery has gone bad. Could someone please send me/post some info on how to replace the battery i.e. are there any special things I need to do? any "tricks"? is there anyway to be sure that this is the problem before replacing it? Any info would be much appreciated.
spear@booboo.UUCP (Steve Spearman) (05/24/88)
From article <4141@killer.UUCP>, by ken1@killer.UUCP (Ken Ihrig): > Whenever I turn my computer off, the time gets reset. I assume that > the battery has gone bad. Could someone please send me/post some info on > how to replace the battery .... Here is a re-posting of some information that I used successfully in my PC. Basically, just remove the top and open the shield. Find the large round lithium battery on the top of the motherboard. It is soldered on two sides - unsolder and remove it, but note the polarity of the connections carefully. Put a 2 AAA holder (from Radio Shack) somewhere convenient - I found it mounted back by the floppy pretty well. Run the wires up and attach where the battery was attached. Watch the polarity again. Install 2 AAA nicads, preferably charged. That should do it! The voltage will be 2.6 rather than 3.0 but that hasn't seemed to matter. Steve Spearman ihnp4!booboo!spear ethos!ihtlt!ihop3!booboo!spear /* Written 9:15 pm Oct 16, 1987 by ureka.UUCP!charlie in looney:unix-pc.general */ /* ---------- "3B1 clock battery replacement" ---------- */ I have just received my Clock Battery Kit from Amperfax to replace the original 3B1 clock battery. For those of you who haven't had to do this yet, here's what I got for $ 28.49 2 each Panasonic AAA nicads ( roughly $ 1.50 - $ 2.00 ) 1 each battery holder ( approx. $ .59 ) 1 each pigtail with a polarized connector pair ( approx. $ 1.59 ) 1 instruction sheet telling me to unsolder the old battery terms and solder in the new. That's it !!!!! ............... There's nothing else to it. So if you haven't done it yet, you will in all probability have to do so within a year. You might be able to save yourself about $ 24.00 (~500 %) by shopping locally. The reason I bought the kit was on the advice of someone else who bought an earlier kit which apparently had a current limiting network also. Now the current limiting network is no longer provided ( perhaps not needed ) so there's no apparent need to pay the extra 24 bucks or so. By the way, there is NO WARRANTY with the kit except that they will replace a factory defective battery or connector only. DISCLAIMER: This should not be constituted as advice but just as information relaying what I got for my money and what I would do the next time. -- .... Charlie .... rutgers!rochester!kodak!ureka!charlie ethos!gizzmo!pcid!ureka!charlie /* End of text from looney:unix-pc.general */ /* Written 5:08 pm Jun 22, 1987 by u1100a.UUCP!krohn in looney:unix-pc.general */ In article <902@woton.UUCP> riddle@woton.UUCP writes: ] Does anyone out there know anything about clock batteries on the UNIX PC, ] specifically (1) how to replace them and (2) the consequences of not ] replacing a dead battery? Mine came with a dead battery. Since I do not leave my machine running continually, one of my first orders of business was to replace the battery. After reading about a battery upgrade by Amperfax: I purchased a battery holder and lithium battery; disassembled the machine; cut out the old battery (it was quite firmly attached to the metal contacts); soldered wires to the remaining portions of the contacts; soldered the wires to the battery holder (being careful to get the polarity right!); ran the battery holder up into a (hopefully) safe location in the floppy drive housing. The clock works fine now (so does the floppy :-). ] I have heard rumors that AT&T doesn't want to mess with the job of replacing ] batteries and will in fact swap whole boards (!) to avoid doing so. I heard ] this from the rep of another company which sells battery replacement kits. ] Does this make any sense? I think it was a poor idea to solder the battery in place. -- -- Eric J. Krohn krohn@ctt.ctt.bellcore.com or {allegra,bellcore,ihnp4,seismo}!u1100a!krohn Bell Communications Research, 444 Hoes Ln, Piscataway, NJ 08854 /* End of text from looney:unix-pc.general */