+- HP Forums (https://www.hpmuseum.org/forum)
+-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html)
+--- Forum: General Forum (/forum-4.html)
+--- Thread: HP-41 rechargable battery (/thread-9046.html)
HP-41 rechargable battery - HP-Collection - 09-11-2017 05:36 PM
Did you realize that there are two different battery packs for the HP-41? One has 2 charging pins, the other has 3 pins. Both are coded HP82120A.
I'm currious as the charger for this unit has only 2 pins... the middle pin of the 3 pin version is absolutly "useless".
Matthias
RE: HP-41 rechargable battery - Sylvain Cote - 09-11-2017 05:42 PM
(09-11-2017 05:36 PM)HP-Collection Wrote: Did you realize that there are two different battery packs for the HP-41? One has 2 charging pins, the other has 3 pins. Both are coded HP82120A.
I'm currious as the charger for this unit has only 2 pins... the middle pin of the 3 pin version is absolutly "useless".
Matthias
Hello Matthias,
You can find the information on the HP82120A with two pins here and with three pins here.
Sylvain
RE: HP-41 rechargable battery - Massimo Gnerucci - 09-11-2017 05:55 PM
(09-11-2017 05:36 PM)HP-Collection Wrote: Did you realize that there are two different battery packs for the HP-41? One has 2 charging pins, the other has 3 pins. Both are coded HP82120A.
I'm currious as the charger for this unit has only 2 pins... the middle pin of the 3 pin version is absolutly "useless".
Matthias
Of course we know, Matthias.
My first one was a 3-pins design.