Some rechargeable N-Cells I have used in my 41c over the years

[mfleming]

(04-27-2023 08:00 AM)Chr Yoko Wrote:  I am currently using a smaller set of NiMh cells into my 41CL, but they last 3 weeks about....

Pikcell 2/3 AAA 400mAh

Issue is that i usually lose all my 41CL parameters if the cells depleted completely.
Also there is no more "battery low" warning from the 41.
Therefore that is a pretty not so convenient solution.

The smaller 2/3 AAA cells are excellent with the HP28C/S and other clamshells. The flattops reduce pressure on the battery door.

Someone gave an excellent explanation (with diagrams IIRC) of the low battery warning a few years back. In a nutshell alkaline and NiCd cell output voltage declines gradually as the cell discharges but NiMH voltage remains relatively steady before "dropping off a cliff. " Low battery warning time is therefore brief.

I just stick with alkaline N cells since their capacity is superior to rechargables.