Posts: 1,792
Threads: 62
Joined: Jan 2005
I have several 34C's, which are also members of the Spice series. They are designed to use "short" 2 x 1.2V AA series-connected cells; the standard AA cells with posts on the + terminals are too long and will break the battery contacts when inserted.
Packs can be fabricated using Radio Shack's "replace-a-cell" 1.2V 700 mAh NiCd short cells with soldering tabs (part #23-191B).
Or, for testing, you might buy Radio Shack's 1600 mAh, 1.2V NiMH cells with posts (part #23-525A), place them in a 2x AA battery holder with 9V-style connector, and connect them to the calculator battery terminals with a connector-terminated set of leads and set of alligator clips. RS sells all parts.
The + terminal on the calc is nearer to the serial number on the back.