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+--- Thread: New battery for 82161a and 82162a (/thread-21783.html)
New battery for 82161a and 82162a - Marcel - 05-23-2024 04:58 PM
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
RE: New battery for 82161a and 82162a - Johnboy - 05-24-2024 04:45 AM
Good to choose NiCD instead of NiMH.
RE: New battery for 82161a and 82162a - Duane Hess - 05-24-2024 06:39 AM
(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.
RE: New battery for 82161a and 82162a - Hiwi - 05-24-2024 07:12 AM
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