HP 12C how to replace the 3 LR44 batteries?

[Massimo Gnerucci]

(01-04-2022 11:18 PM)Stevetuc Wrote:  

(01-04-2022 06:19 PM)albertop Wrote:  Hi guys, I have lost the manual of my very old HP 12C and I don't remember the sequence to replace the 3 LR44 batteries without losing the programming.
Can anyone help me ?
Thank you !!

Page 261 of the original hp15c usersguide shows the procedure,
https://literature.%%calc.org/items/582

Please insert hp for %% in the link above. For some reason shrouded in the mists of time, direct references to that site are taboo here.

Not at all. It's another the forbidden one! ;)
https://literature.hpcalc.org/items/582

But why not point directly to the 12C manual? And, since Alberto is a fellow italian member here's the link (pp. 219 ff.)
https://literature.hpcalc.org/community/hp12c-oh-it.pdf