Battery Runtime Calculator: {"type":"doc","attrs":{"background":{"dim":27,"url":"https://images.unsplash.com/photo-1555664424-778a1e5e1b48?q=80&w=2340&auto=for…
{"type":"doc","attrs":{"background":{"dim":27,"url":"https://images.unsplash.com/photo-1555664424-778a1e5e1b48?q=80&w=2340&auto=format&fit=crop&ixlib=rb-4.1.0&ixid=NHwxMjA3fDA%3D"}},"content":[{"type":"heading","attrs":{"level":1},"content":[{"type":"text","text":"How long does my battery last?"}]},{"type":"paragraph","content":[{"type":"text","text":"Works for power banks, e-bikes, ESP32 projects and tool batteries."}]},{"type":"heading","attrs":{"level":2},"content":[{"type":"text","text":"Battery"}]},{"type":"numbox","attrs":{"code":"cellVoltage = 3.6 V\ncellCapacity = 3000 mAh\ncellsInSeries = 3\ncellsInParallel = 2\nusableDepth = 90 %"}},{"type":"heading","attrs":{"level":2},"content":[{"type":"text","text":"Energy"}]},{"type":"numbox","attrs":{"code":"packVoltage = cellVoltage * cellsInSeries\npackCapacity = cellCapacity * cellsInParallel\nenergy = packVoltage * packCapacity * usableDepth to Wh"}},{"type":"heading","attrs":{"level":2},"content":[{"type":"text","text":"Load"}]},{"type":"numbox","attrs":{"code":"loadPower = 18 W\nruntime = energy / loadPower to hours"}},{"type":"heading","attrs":{"level":2},"content":[{"type":"text","text":"Or work out what load gives a wanted runtime"}]},{"type":"numbox","attrs":{"code":"wantedRuntime = 8 hours\nmaxLoad = energy / wantedRuntime to W\nmaxCurrent = maxLoad / packVoltage to A"}},{"type":"paragraph"}]}