joey castilloBattery test, day 420 (and 315): 1.97 and 3.07 volts. Might be the last time these two get photographed together. I also brought them both into the backcountry, where they hung on a branch for one last night of temperature logging. It’s wild that running on this same coin cell, that gray watch logged temperatures in Big Bend in December of 2021. Even with the old firmware, this watch ran continuously for all of 2022, and saw three calendar years. And at just shy of 2 volts, it’s still going…
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