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HP 12C



#2

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


#3

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


#4

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.


#5

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


#6

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.


#7

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.


#8

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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