HP Forum Archive 15

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HP 12C Message #1 Posted by Randy on 18 Oct 2005, 5:49 p.m. I have an old 12c and it has a flashing * in the lower left corner of the display. Can anyone tell me what it means and how to get rid of it? Thanks in advance

Re: HP 12C Message #2 Posted by Tomas Fischer on 18 Oct 2005, 8:03 p.m., in response to message #1 by Randy It indicates that the battery is running low. To fix it, replace the batteries :) It takes 2 LR44, SR44, A76, 357 or EXP76. Hope that helps Tomas

Re: HP 12C Message #3 Posted by blurdybloop on 18 Oct 2005, 8:07 p.m., in response to message #2 by Tomas Fischer Radio Shack sells SR44s as type 303 silver-oxide batteries, catalog number 23-104. By the way, new production HP-12c use a different battery, so make sure that you check the battery compartment rather than go by messages posted here.

Re: HP 12C Message #4 Posted by Nelson M. Sicuro (Brazil) on 19 Oct 2005, 7:13 a.m., in response to message #3 by blurdybloop Older HP-12C uses 3 (three) 1.5V button cell battery tipe LR44 or equivalent (alkaline) or SR44 (silver oxide, expensive but lasts longer) Newer models uses a single lithium 3V coin cell (CR2032? anyone?) Best regards, Nelson

Re: HP 12C Message #5 Posted by Gerson W. Barbosa on 19 Oct 2005, 4:22 p.m., in response to message #4 by Nelson M. Sicuro (Brazil) Quote: (CR2032? anyone?) Hello Nelson, You're right, CR2032 by what I can remember and according to HP-12C specs page. By the way, do you know where I can find SR44 cells here in Curitiba? So far, I've only been able to find LR44 cells, mostly Maxell brand. Best regards, Gerson.

Re: HP 12C Message #6 Posted by blurdybloop on 20 Oct 2005, 2:19 a.m., in response to message #5 by Gerson W. Barbosa I checked my (2005 production) HP-12c and indeed it takes a CR2032. For older HP 10 series calculators, HP lists any of the following as being suitable: Eveready (or UCAR) A76 (alkaline), 357 (silver oxide) RAY-O-VAC RW82 (alkaline), RS76 or RW42 (silver oxide) National (or Panasonic) LR44 (alkaline) Duracell MS76 or 10L14 (silver oxide) Varta 4276 (alkaline), 541 (silver oxide) I don't know if you have Radio Shack stores in Brazil; they are ubiquitous in North America. Radio Shack catalog number 23-104 is a type 303 silver oxide battery which is listed as a substitute for: Type A, WS14, SB-A9, GS14, 9, 521, EPX77, 8002, 303, 1130SO, SR44, D303, D357, SP303, V303, SR44SW. The Radio Shack batteries themselves are stamped Energizer and either 303 or 357/303.

Re: HP 12C Message #7 Posted by Gerson W. Barbosa on 20 Oct 2005, 11:38 a.m., in response to message #6 by blurdybloop Thanks for the info. I'll take a better look at local photo stores. We don't have Radio Shack stores here (We have Sam's Club and Wall Mart stores though - but the HP-12C is the only HP calc they sell) Regards, Gerson.

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