HP 28 misc...

[jebem]

(06-21-2018 12:31 PM)mdunn Wrote:  1. Is the 2-cell tube supposed to be so tight? I really have to whack the calculator to get the cells out.

The original battery on the side model can hold the battery cells inside in such a way that I need to rock the calculator a little to convince them to slide and go out.

I have 6 of these machines among 19's and 28's, and all exhibit this behavior, even for one 19BII that has the battery on the back.

I found out the cause for this to be related to the fact that there are N cells with slightly different sizes depending on the brand.
Here: http://www.hpmuseum.org/forum/thread-107...l#pid97721