HP 41 battery Shield - what is it ?



#4

Ebay 110715485440 I have never seen one of these before, does anyone know what it's for (apart from what it says in the auction), and was it shipped with early 41c or late cx etc ?? I thought part number 82120A is the rechargeable battery pack ???

Cheers,
John


#5

I had one of those (for a 41c). It has some rivets that can damage the foil in your battery compartment (it damaged mine). It is to be used with the battery holder, the text on it says "don't use with the rechargeable battery pack 82120A".


#6

The rivets are intentional, for at least two reasons:

- Work with slightly damaged contact foils

- Do not add too much material between the contact foil and the batt poles

The battery shield as such should:

- Protect the foil from leaking batts

- Add some extra retention for the batts when not in the calc

The idea was not bad, but the pre-perforation of the contact foil is a no-go, so I would not recommend using the shield.


Possibly Related Threads...
Thread Author Replies Views Last Post
  HP-41(CL): The easiest way to transfer FOCAL programs from a Linux PC to the HP-41 Geir Isene 13 1,941 12-05-2013, 02:40 AM
Last Post: Hans Brueggemann
  HP 41 Battery Pack Rebuild John Ratard 0 1,346 09-29-2012, 01:37 PM
Last Post: John Ratard
  aOT--Battery/battery contact care advice needed Matt Agajanian 0 374 04-24-2012, 07:35 PM
Last Post: Matt Agajanian
  Charging times for HP-41 rebuilt battery pack Timo 2 447 01-07-2011, 11:31 AM
Last Post: Timo
  Rebuilding an HP 41 battery pack DavidShenk 12 1,003 04-22-2010, 03:17 PM
Last Post: Alberto Fenini
  TDS 500K dead battery, pictures of the inside of the card and the battery. Geoff Quickfall 4 713 04-02-2009, 11:23 PM
Last Post: Geoff Quickfall
  HP-41 Modules/battery usage Kevin Kitts 1 321 03-22-2008, 01:01 PM
Last Post: Diego Diaz
  HP-41 CV Repair/Battery Contacts kevin 1 387 06-10-2007, 11:17 AM
Last Post: Ralph
  HP 41 Printer Battery Pack 82033A replacement Rolland Hamm 1 376 05-04-2007, 06:12 PM
Last Post: Les Wright
  HP-65 Display Glare Shield? John Garza 5 601 03-07-2007, 09:51 AM
Last Post: Spacedog

Forum Jump: