Photo, wristwatch on an arm. Display: “Battery 3.06 volts”
https://files.mastodon.social/media_attachments/files/110/242/969/641/289/497/original/90262ccd95b9b277.jpeg
New battery test, day 425: 3.06 volts. This is a milestone. Day 425 was the day that the old watch with the old firmware — red line in the graph — finally went kaput. With the new, more efficient firmware (green line), the test watch remains at nominal voltage, one year and two months into the test.
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