New battery for 82161a and 82162a

[Marcel]

Hi!
I am very happy to play again with my HP 82161a cassette drive and HP 82162a thermal printer after a battery change.

I received yesterday from Amazon the new Sub-c 2000 mAh battery and everything is perfect!

Marcel

[Johnboy]

Good to choose NiCD instead of NiMH.

[Duane Hess]

(05-24-2024 04:45 AM)Johnboy Wrote:  Good to choose NiCD instead of NiMH.

I found your comment interesting. Was curious why you thought so. Not challenging the comment at all, just wondering the basis.

I've read current day NiCADs have a significantly lower self-discharge rate than NiMH. Does anyone know if that is true?

Origianlly (for me, i.e. ~10 years ago) thought NiMH may be a good substitute for a product with diminishing manufacturing quantities; NiCD. Close enough voltage, but would need to consider chargers & overcharging. As time went on I felt just stick with modern day NiCAD until they are no longer available/affordable.

Since you mentioned it, wondering what others thought.

[Hiwi]

Hi,
NiCd are more robust, i have 20 years old fully working sub-c cells.
They can often be reactivated when fully discharged. NiMh not.

Because of the low inner resistance, the self-discharging is greater. Newer Nicd are not better in my experience.

The hp charging circuits are very simple and are not optimized for NiMh.
I modified my Hp82161 /162 charing circuit for more current, so the time to charge is simmilar to the old Nicd which have only half the capacity.

And Nicd have an environmental problem, so I prefer Nimh.

Ralf