Event Runtime & Dosing Calculator

Home › Calculators › Runtime as a Function of Events, and What Moving Costs

Idle current mA — everything that never sleeps

Pack capacity mAh

Current during an event mA — the light, the pump, the thing it does

Seconds per event

Controller current while handling it mA

Seconds awake per event

Events per day

Or: a pump dose mL — leave blank if none

Pump output mL per minute

Pump current, running mA

Pump current, stalled mA — sizes the switch

Enter your idle current and the cost of one event, then press Calculate.

From the book — Chapter 12. runtime = capacity ÷ (idle per day + events × cost per event). Halving the events does not double the runtime, because the idle bill is there either way.

Chapter 12 — the Guard and the Water. Everything stays in your browser — no sign-up, nothing stored.