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replacement battery spec for HP 12C financial calculator

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HP 12C




I'm trying to figure out which battery I need for HP Calculator as it appears to have 2 kinds on this type. ( 


So on the back of the calculator, I see the number on top 3017B40603. 


Do I need Duracell PX76A/675A OR Duracell DL 2032?



Thank you in advance.

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There are few generations of HP 12C. you need to check s/n of your calculator:


  1. For HP 12c (All serial numbers below CN11500001), you need  Duracell PX76A/675A or  Panasonic LR44 
  2. For  HP 12c (Beginning with serial # CN11500001), HP 12c platinum and prestige series, you need  Duracell DL 2032 or  Panasonic CR2032 



Note: You can find CR2032 from many brands



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I had  similar question but I found the answer on the page at the above link.

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Hi!, @Petenorris :

The correspondient batteries, for your HP-12C, depend of Serial Number (S/N), what tu hace.

See, this description and images, from …

Kind Regards !.
Have a nice day !.
@Maké (Technical Advisor Premium - HP Program Top Contributor).
Provost in HP Spanish Public Forum ...
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