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Little Bird Electronics
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๐Ÿงฎ Coin cell battery life calculator (deep sleep)

Pick a coin-cell type, set active current, wake time, wake interval and sleep current, and watch the SVG coin-cell fill drain and the pulse waveform update live. Flags brownout risk when active current exceeds the cell's pulse rating. Shows runtime in the friendliest unit โ€” days, months or years โ€” capped at the 10-year shelf life.

Maddy, co-founder of Little Bird

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