What should be my next LED HP calculator?

[Trond]

(12-06-2021 08:08 AM)vaklaff Wrote:  

(12-05-2021 11:02 PM)Trond Wrote:  Well, this is weird. I put my old batteries from the HP 67 into the 55, and vice versa.....and now (for the moment at least) they're both working perfectly!

OK here it is:

Sigh, I shouldn't have asked for a picture, now I want a 55 too...
Anyway, congrats to the recovery!

Many thanks! I'm liking this one more and more, despite the lack of continuous memory. Maybe it will be my "bedside drawer" calculator for quick number crunching and conversions when I need it.

The old HP 67 battery I already had is a contraption with lots of tape and such. I think the slight pressure that come from the thickness of the tape when closing the lid did the trick for the 55 somehow. Remarkably, the battery that came with the 55 actually fits better in the 67. Just one of those lucky breaks. I hope it holds up.