HP 41CL - Power Consumption

[rprosperi]

I've had basically the same experience that Mark reports. I've noticed that when the overall set "dies" that typically, one of the batteries is usually more "dead" than the others, though honestly never checked them in-place to note if that one is always in the same battery holder position. I also don't recall a negative voltage battery. I guess that's past dead??

For my CLs, I use Alkaline cells and check them about monthly, and indeed a set will always last many months, though I admit I rarely use these for long run-time calculations, so perhaps a different usage scenario.

I can also report that I've used similar-looking mint-green NiNH cells and have found their quality to be uneven, though none of them have ever leaked. So far.