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Replying to @AlperenAkkuncu

The MCU is designed to run as low as 1.63 volts. The LCD starts to dim below 1.5 volts, and while I’ve taken it down as far as 1.4, I suspect that it’ll be a matter of hours between those points; the curve declines sharply toward the battery’s end of life. https://twitter.com/josecastillo/status/1492935877265395717

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