HP 28S is very loud when opening/closing

[Massimo Gnerucci]

(01-30-2020 10:40 PM)rprosperi Wrote:  

(01-30-2020 09:07 PM)Massimo Gnerucci Wrote:  Maybe. Are they readily available? I never found them, anywhere.

Plenty of sources for them on Amazon, at least in USA. Here's one, but there were at least a dozen others:

https://www.amazon.com/6pcs-3AAA-Recharg...B01NAHBOES

But I agree, I've never seen them in a brick-and-mortar store, despite hearing about them for many years.

They seem to exist only in rechargeable format.
I've seen pictures of alcaline Energizer N batteries with a quite short cathode.