IoT Power & Battery Estimator

Model active/sleep current draw and duty cycle to estimate average consumption and battery life in hours and days.

Battery Capacity

mAh

Microcontroller

85 mA active · 0.005 mA sleep

Sensor / Peripheral

0.7 mA active · 0.0001 mA sleep

Active Duration2 s

Sleep Duration60 s

Active Draw: 85.7 mA
Sleep Draw: 0.0051 mA
Duty Cycle: 3.23 %
Avg Current: 2.769 mA

Estimated Battery Life

30.1

days

722 hours

MCU: ESP32-C3 (Wi-Fi/BLE)

Sensor: BME280 (temp/humidity/pressure)

Ideal estimate from average current draw. Real-world runtime is lower due to self-discharge, regulator efficiency, temperature, and aging. Apply a derating factor of ~0.7–0.8 for planning.