Charging and batteries for HP 34C

[hibiki]

(10-20-2016 06:45 PM)Hsilop Wrote:  Thanks again!

So two AA size, 1.5V rechargeable cells will do, if I just connect them in series? Will non-rechargeable alkaline batteries work also in a pinch?

The original battery cells are flat in both side, what means that they are smaller than regular AA cells. As my calculator spring contacts don´t exist (but enough to make connectiow with the batteries), the space is enough for the batteries. Try to find the smallest AA cells (in length not in capacity), yes, they are not the same size depending on the manufacturer.
Fresh alkaline cells have more than 1,5V, NiMH charged has 1,4V max. Better not to risk your calculator (or don´t use fresh alkalines).