HP35 problem with a calculator, maybe due to a faulty charger

[teenix]

(03-21-2021 09:37 AM)ThomasF Wrote:  Sad story, I hope you get it right Aurelio, fingers crossed!

Tony, as chargers becomes more and more unreliable, do you know the best way to charge battery packs outside the calculator?
Yes, there are HP-docks for that, but I don't have any, but I'm thinking of building one for each type (mainly for Classic and Woodstock). Do you know of any schematics that shows how the charger is connected to the battery, I guess that there is some kind of protection between the charger and the battery?

Best regards,
Thomas

A lot of HP circuits courtesy of Tony Duell are here....

http://www.hpcc.org/cdroms/schematics5.0/index.html

cheers

Tony