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Capacity of "Topcat" 82033 battery packs
05-05-2023, 05:45 AM
Post: #1
Capacity of "Topcat" 82033 battery packs
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
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05-05-2023, 06:24 AM
Post: #2
RE: Capacity of "Topcat" 82033 battery packs
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.
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05-05-2023, 11:02 AM (This post was last modified: 05-05-2023 11:04 AM by ThomasF.)
Post: #3
RE: Capacity of "Topcat" 82033 battery packs
(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.
   
A modern (rebuild) battery would be around 3 times as much, see e.g. here (HP82033A).

[35/45/55/65/67/97/80 21/25/29C 31E/32E/33E|C/34C/38E 41C|CV|CX 71B 10C/11C/12C/15C|CE/16C 32S|SII/42S 28C|S 48GX/49G/50G 35S 41X]
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05-11-2023, 03:07 AM
Post: #4
RE: Capacity of "Topcat" 82033 battery packs
Thanks guys, much appreciated.

Cheers,
John
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