HP 12C - refresh batteries or not?

[jthole]

Yes, I already considered the cost of LR44 batteries, and bought a new set. Better safe than sorry :-)

About the DM42; yes, I looked at it, and I know that it will be available very soon. But it is severe overkill for me, and it is larger than the DM15L or HP 12C. As I don't have an office, I have to carry around everything in my laptop bag. So size counts :-)

Thanks for the suggestions! And I know it's been done before (and better), but yesterday night I wrote a small program to convert decimal numbers into binary ... it was fun to do :-)