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Screenshot of a tweet. “Sensor Watch battery test! Day 0; 3.24V. Now I just have to wear it for a year. The graph is of a coin cell's typical drain @ 97µA; our low energy mode sips less than 10. Anyway the goal is for this watch to still be ticking come next November (tho I'd love for it to see 2023 🥳)”

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Screenshot of a tweet. “Sensor Watch battery test! Day 0; 3.24V. Now I just have to wear it for a year. The graph is of a coin cell's typical drain @ 97µA; our low energy mode sips less than 10. Anyway the goal is for this watch to still be ticking come next November (tho I'd love for it to see 2023 🥳)”
https://files.mastodon.social/media_attachments/files/109/649/429/859/855/383/original/134544b6b7f32c07.jpeg

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joey castillo (joeycastillo@mastodon.social)'s status on Sunday, 15-Oct-2023 18:09:23 JST joey castillo
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Napkin math suggests that if we accept the rated capacity of 100 mAh and divide that by the 10,198 hours of runtime we achieved, we’d get an average current consumption of 9.806 microamperes — which tracks astonishingly close to the hypothesis I posted at the outset, fourteen months ago.

In conversation Sunday, 15-Oct-2023 18:09:23 JST from mastodon.social permalink