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+--- Thread: Capacity of "Topcat" 82033 battery packs (/thread-19905.html)
Capacity of "Topcat" 82033 battery packs - Johnboy - 05-05-2023 05:45 AM
Does anyone know the capacity (mAh) of the 82033 battery packs (4 x Sub-C cells) as used in Topcat calculators and 82143/82162 printers and 82161 tape drive ?
Thanks
John
RE: Capacity of "Topcat" 82033 battery packs - brouhaha - 05-05-2023 06:24 AM
I don't know specifically about the cells HP used, but IIRC, typical NiCd sub-C cells in the mid-1970s were around 1100 mAh.
RE: Capacity of "Topcat" 82033 battery packs - ThomasF - 05-05-2023 11:02 AM
(05-05-2023 06:24 AM)brouhaha Wrote: typical NiCd sub-C cells in the mid-1970s were around 1100 mAh.
Yes, that seems to be in line with this battery check procedure in the 82143A service manual.
[attachment=12060]
A modern (rebuild) battery would be around 3 times as much, see e.g. here (HP82033A).
RE: Capacity of "Topcat" 82033 battery packs - Johnboy - 05-11-2023 03:07 AM
Thanks guys, much appreciated.
Cheers,
John