Reasons for scarcity of working TI-58C machines

[dmh]

Thanks for the advice.

I'll keep an eye out for an HP classic charger box!

(06-28-2023 01:16 AM)John Garza (3665) Wrote:  

(06-28-2023 01:10 AM)dmh Wrote:  I have a working 58C and am wondering, based on this thread, will it definitely die sooner or later or if it's still working now it may continue for some time?

Will usage bring on the failure sooner?

Maybe I should get rid of it while it's working, I have a 59 too.

Thanks, dmh

Number one... throw away the charger.
Always charge batteries externally. I have reason to believe the 58C is sensitive to charger use without a battery or a bad battery or bad electrical contact with the battery. Similar to the HP-25C.

I use an HP classic charger box (Reserve Pack) and place the battery in with the plastic tab facing the LED. Place a little bit of foam near the hinge in the well to support the battery and move it's contacts in position over the charger contacts. Works great.

-J