HP-32E Advanced Scientific Calculator - my first Spice machine
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11-15-2016, 10:51 PM
Post: #14
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RE: HP-32E Advanced Scientific Calculator - my first Spice machine
(11-14-2016 02:50 PM)jebem Wrote: Instead of the original Ni-Cd based technology, I have used the Texcus Ni-MH type Mignon AA HR6 1.2Volt 2100mAh with solder tags. Sounds like a common low self-discharge type. (11-14-2016 02:50 PM)jebem Wrote: I have soldered the tags on one side to configure the two cells in series and have removed the tags on the other side (facing the battery connector clips). FTR: there are also battery packs with two cells already welded together. (11-14-2016 02:50 PM)jebem Wrote: According to the HP owners guide, the original battery pack would run for around 3 hours of continuous operation. Back in the days of the Spices series, around 1980, there were no 700 mAh NiCds. The regular capacity was 450 mAh, later maybe up to 500 mAh. So with a decent 2000 mAh battery you now can expect 4x the original operating time. Dieter |
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