HP 33e and 33c battery packs



#3

Does anyone know a source for battery packs for the 33e and 33c? I have several of them, with chargers, but no battery packs.

Thanks!


#4

Series 30 battery packs are probably the easiest to construct. You take two AA rechargable cells with flat tops
(preferably with metal wire tabs if you can find them).

You then place them one next to the other and solder the positive end of one with the negative end of the other

.-------------.
+() | -
-------------
.-------------.
-| () +
-------------

You then use hot glue to join the batteries on the top
side and only a third way on the bottom (to allow of the
orientation tab on the bottom of the batery compartment).

Make doubly sure that the pack orientation is correct.


Possibly Related Threads...
Thread Author Replies Views Last Post
  HP 35S: Resistors in Series or Parallel (Portred from HP-33E) Eddie W. Shore 2 309 10-14-2013, 05:29 AM
Last Post: R. Pienne
  Battery holder for my 33C Palmer O. Hanson, Jr. 1 259 07-08-2013, 04:03 PM
Last Post: Gerson W. Barbosa
  Does anyone want dead 82001 battery packs? Michae Altmann 6 557 03-15-2013, 07:32 PM
Last Post: Harald
  aOT--Battery/battery contact care advice needed Matt Agajanian 0 246 04-24-2012, 07:35 PM
Last Post: Matt Agajanian
  What's the deal with expensive battery packs ? Michael de Estrada 17 1,044 06-24-2011, 11:17 PM
Last Post: Martin Pinckney
  HP-33C dead after connecting Charger witout batteries Ernst Fueloep 6 481 11-08-2010, 10:36 AM
Last Post: Ernst Fueloep
  HP 33e repair Lincoln R. 2 256 07-29-2009, 09:55 PM
Last Post: Lincoln R.
  TDS 500K dead battery, pictures of the inside of the card and the battery. Geoff Quickfall 4 497 04-02-2009, 11:23 PM
Last Post: Geoff Quickfall
  TI 2550 Battery Packs Revisited Palmer O. Hanson, Jr. 0 175 08-09-2008, 01:33 AM
Last Post: Palmer O. Hanson, Jr.
  HP 33E Battery Contact Polarity? Danny Eskenazi 8 621 05-11-2007, 10:31 AM
Last Post: Danny Eskenazi

Forum Jump: