Why did so many early / cheap calculators use 9V batteries?

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Why did so many early / cheap calculators use 9V batteries?

03-29-2018, 04:08 PM

Post: #2

Paul Berger (Canada) Offline

Senior Member

Posts: 546
Joined: Dec 2013

RE: Why did so many early / cheap calculators use 9V batteries?

I suspect it was because of the compact size and the convenient voltage. For instance all of the Commodore calculators I have that use rechargeable batteries has a DC-DC convertor in them to boost the battery voltage whereas the one powered by a 9V battery does not, which results in lower parts count and lower cost.

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Messages In This Thread

Why did so many early / cheap calculators use 9V batteries? - Gene - 03-29-2018, 03:55 PM

RE: Why did so many early / cheap calculators use 9V batteries? - Paul Berger (Canada) - 03-29-2018 04:08 PM

RE: Why did so many early / cheap calculators use 9V batteries? - KF6GPE - 03-29-2018, 05:32 PM

RE: Why did so many early / cheap calculators use 9V batteries? - Paul Berger (Canada) - 03-29-2018, 05:52 PM

RE: Why did so many early / cheap calculators use 9V batteries? - Maximilian Hohmann - 03-29-2018, 06:23 PM

RE: Why did so many early / cheap calculators use 9V batteries? - Dieter - 03-29-2018, 07:03 PM

RE: Why did so many early / cheap calculators use 9V batteries? - Maximilian Hohmann - 03-29-2018, 07:34 PM

RE: Why did so many early / cheap calculators use 9V batteries? - Massimo Gnerucci - 03-29-2018, 07:47 PM

RE: Why did so many early / cheap calculators use 9V batteries? - Dieter - 03-29-2018, 09:01 PM

RE: Why did so many early / cheap calculators use 9V batteries? - Thomas Okken - 03-29-2018, 09:02 PM

RE: Why did so many early / cheap calculators use 9V batteries? - Bill (Smithville NJ) - 03-29-2018, 08:14 PM

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