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daustins
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re: Silicon Valley Nation: 30-year battery life? Really?
daustins   12/12/2012 4:17:34 PM
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In 1981 I got a Casio hand calculator: LCD display, running on one AA battery. I never turned the power switch off. I used it daily for a decade and after 25 years found it, and it was still functioning. Under a quarter century of grime. I recall over 30 years ago when the first chip was released for flashing an LED with a very short duty cycle. It was postulated that the batteries (way before Lithium-ion and when NiCad was the Gold Standard) would last longer with a very slight current drain. It seems they were right.

ehat
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re: Silicon Valley Nation: 30-year battery life? Really?
ehat   12/12/2012 1:23:47 PM
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Radio Shack EC-4028 Calculator bought in ~92-93. Changed batteries in 8/12. Didnt have to but the screen was getting a little light.

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