3D Printed Sting 10 / 19C Battery Tray

[dmh]

Thanks. I'm not sure I want to modify the calculator as it's in excellent and (appears) original condition.

Is there a removable contact connector that would work? I use alligator clips for testing but not suitable for long term use.

(01-27-2022 08:05 AM)Jonas Sandstedt Wrote:  Hello,

I use the solution described (by me) at

https://www.hpmuseum.org/forum/thread-17716.html

and it works nicely.
Here the battery pack can be easily removed and safely charged outside the calculator, for example by an USB NiMH charger.

I have used a similar solution for an HP-97 with four sub-C celles instead, and it also works very well.

best regards
Jonas