Battery Life Equation:
From: | To: |
The IoT Battery Life Calculator estimates how long an IoT device will operate on a single battery charge based on its battery capacity and current consumption.
The calculator uses the battery life equation:
Where:
Explanation: The equation calculates how many hours a battery will last by dividing its total capacity by the current draw of the device.
Details: Accurate battery life estimation is crucial for IoT device design, deployment planning, and maintenance scheduling.
Tips: Enter battery capacity in mAh and device current consumption in mA. Both values must be positive numbers.
Q1: How accurate is this calculation?
A: This provides a theoretical maximum. Real-world factors like temperature, battery age, and usage patterns will affect actual battery life.
Q2: What's a typical IoT device current consumption?
A: Consumption varies widely but might range from 0.1mA (deep sleep) to 100+ mA (during transmission) depending on the device.
Q3: Should I use nominal or actual battery capacity?
A: For best results, use actual measured capacity as batteries often deliver less than their nominal rating, especially after aging.
Q4: How does duty cycle affect battery life?
A: If your device has variable consumption, calculate average current consumption including all sleep/active cycles.
Q5: Can I calculate battery life in days or years?
A: Yes, simply convert the hours result to your desired time unit (divide by 24 for days, by 8760 for years).