Zinc-Air PR44 button cell batteries



#4

As far as I understand, the Zinc-Air PR44 button cell batteries have the same fit, but features slightly different voltages and life capacity than the more common Silver-Oxide based SR44 batteries. Do anyone have experience using these Zinc-Air batteries with the Voyager calculator series? And if so, how are they compared to the SR44 batteries?


#5

I don't have experience with using zinc-air cells in a calculator but have used them as replacements for Mercury PX625 cells in cameras. They have a fairly stable voltage to replicate the Mercury originals but once exposed to air I found they don't last long at all. Perhaps a couple of months in a lightly used camera. The problem is that they decay from the second they are exposed to air. They are also quite expensive. Is there a reason you would use these in preference to silver oxide?


#6

Thanks for the information. I recently got hold of a packet with eight of these button cell batteries. But has I never used this kind of batteries before, I was a bit worried about using them with my Voyager calculators. I guess I stick to the SR44 batteries then.


#7

They are meant for use in hearing aids. These eat lots of batteries and it is wise to use cells that contain only a minimum of toxic materials. I think this was the driving force behind the development of Zinc-Air cells.


Possibly Related Threads…
Thread Author Replies Views Last Post
  HP Prime: the drama of the Apps button, shutdown, formatting, nothing solves Davi Ribeiro de Oliveira 0 1,160 11-17-2013, 07:23 AM
Last Post: Davi Ribeiro de Oliveira
  HP Prime: the drama of the Apps button, shutdown, formatting, nothing solves Davi Ribeiro de Oliveira 1 1,396 11-16-2013, 11:26 PM
Last Post: Michael de Estrada
  ENG button (like Casio calculators) on HP Prime uklo 3 2,099 11-04-2013, 09:45 PM
Last Post: LHH
  How to create a touch button [HP Prime] uklo 1 1,264 11-02-2013, 02:03 PM
Last Post: Marcus von Cube, Germany
  HP Prime touch button SanS 3 1,587 10-10-2013, 12:24 PM
Last Post: Han
  best button cell batteries JDonley 6 2,188 01-30-2013, 10:00 PM
Last Post: JDonley
  Source for N-Cell NiMh Batteries and Charging adapters TnC_Products 14 4,054 12-16-2012, 10:26 AM
Last Post: Dieter
  Sharp PC-1500 question (F2 button disabled?) LHH 7 2,295 12-03-2012, 08:34 PM
Last Post: LHH
  Java RPN app for cell phone Peter Klein 12 3,542 10-15-2012, 05:23 PM
Last Post: Pete Wilson
  Entering 34s SAM-BA bootloader without Erase button. Harald 4 1,613 03-04-2012, 03:03 PM
Last Post: Harald

Forum Jump: