HP-29C now has dots across the display...

[teenix]

(09-02-2024 04:12 PM)Bill Duncan Wrote:  Interesting Bob, thanks.

Oddly, I've always had the opposite opinion of Duracell. Decades ago I had issues with Eveready batteries leaking, so I switched to Duracell and have never had problems with them. Odd.

These cells were new, and registering with 1.65 volts which is what I'd expect. If anything, I thought it might've been over voltage, as the original NiCD cells are around 1.25v.

I did some voltage measurements on a HP-45 board with raised battery voltages and the VCC voltage was the one that rose, the others seemed stable. I haven't tested a Woodstock.

I don't know if this raised operating voltage caused issues with the circuitry.

cheers

Tony