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12C battery life: 3xLR44 model vs. 1xCR2032 model
04-23-2020, 03:07 PM
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12C battery life: 3xLR44 model vs. 1xCR2032 model
Out of curiosity, has anybody analyzed the expected battery life of the older 12Cs that use 3 LR44 cells compared to the Chinese models that use a single CR2032? This model was sold just prior to the ARM-based version that uses 2 CR2032s, so it should have theoretically about the same power requirements, given that it still uses a Nut CPU.

An LR44 is allegedly around 120 mAH (that estimate remains the same when they're in series, right?), a silver-oxide 357 around 150 mAH, and a CR2032 is around 220 mAH.

I don't know the exact date range that the 1xCR2032 model was produced, but mine appears to be from 2002 according to the serial number. Incidentally, the keyboard feel on these models is outstanding, but the orange and blue keyboard legends aren't nearly as bright and readable.
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12C battery life: 3xLR44 model vs. 1xCR2032 model - Dave Britten - 04-23-2020 03:07 PM



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