How to open 82001A batterie pack



#7

Hi *,

I have this 82001A from a 1973 HP-45. The batteries started to leak (fortunately, I got this calculator before it was too late) so I would like to replace the cells. My question is, are the two halfes of the case glued or is there a mechanism to open it? I found nothing about that on the museum pages. Sorry if I overlooked something.

Thanks,

Thomas


#8

they are glued

#9

Only the end seams are joined. The side seams are not joined. Open the pack by repeatedly slicing along one of the end seams with an exacto or other very sharp knife*. Occasionally try to pry the seam apart. Eventually it will split open. I have found that only one seam need be split, then just pry the two halves apart from that end and take out the old cells.


* - be careful with the knife. not responsible for bleeding.


#10

Thanks Jeff, Vassilis,

I managed to spare my blood for the next donation:). BTW., only the middle cell leaked so even the contact strips survived.

Thomas


#11

Take the pack to your local Batteries Plus or Batteries Etc store. They will open it, rebuild the cells with proper spot welds, seal it back up, dispose of the innards properly. Should be 20 bucks or so. No fuss, no muss, no blood, no guts, no gore.


#12

We germans are so little service oriented that I would never have guessed a service like that exists;). Besides, the whole calc was not much more that 20 european bucks:). It was hidden under a thick layer of tar. I had to completely dismantle it for cleaning and even had to taper a wooden toothpick to make the key contacts functional again. It is a great little workhorse now.

Thomas


Possibly Related Threads…
Thread Author Replies Views Last Post
  How to open 82162A Thermal Printer Chassis? Ron Fredericks 1 1,150 07-17-2013, 03:58 AM
Last Post: Tony Duell
  any open source HP 10BII emulators? John 15 4,635 06-12-2013, 09:58 AM
Last Post: Kimberly Thompson
  Programming cable for hp-30b -> wp-34s Open letter to Gene Nigel Rowe 37 9,499 08-02-2012, 12:30 AM
Last Post: Guy Dufour
  HP48 open/repair guides back online Han 2 1,276 11-04-2011, 11:15 PM
Last Post: hpnut
  An "Open" letter to "DIY" and "Repurposed" calculator projects Ethan Conner 40 9,301 10-21-2011, 04:41 PM
Last Post: Ethan Conner
  HP48 - WHY where were they made so difficult to open up? mr-scorpio 12 3,446 10-01-2011, 02:23 PM
Last Post: Frido Bohn
  Can we make'em like Bill and David? An open RPN? snaggs 23 4,678 09-18-2011, 04:15 PM
Last Post: Hugh Evans
  Ángel Martin, my Open Source Hero Geir Isene 7 2,464 08-08-2011, 02:26 AM
Last Post: Ángel Martin
  HHC2010 Web Page Is "Open for Business" Jake Schwartz 8 2,216 07-16-2010, 11:27 PM
Last Post: Jake Schwartz
  EMU41 2.50 released as open source! Egan Ford 2 1,052 03-03-2010, 08:17 PM
Last Post: Howard Owen

Forum Jump: