Back to calculator
TechnologyGenerated accuracy model review: 2026-05-06
Battery Life Calculator accuracy and testing
This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.
Formula source
- Time = (Capacity * 0.85) / Load
Test cases
Default input regression check
Generated from the checked-in default inputs and calculate function.
Inputs
- Battery Capacity: 2,000 mAh
- Device Consumption: 100 mA
Expected outputs
- Estimated Runtime: 17 Hours
- In Minutes: 1,020 min
Known limitations
- This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
- Use the result as a planning estimate unless the calculator page states a stricter purpose.
Assumptions
- Capacity and current draw should be entered in matching mAh and mA-style units.
- The estimate uses a fixed 85% efficiency factor rather than a chemistry-specific discharge curve.
- Battery runtime is undefined when the load current is zero or negative.
Unit handling
- Battery Capacity accepts values in mAh.
- Device Consumption accepts values in mA.
- Estimated Runtime is displayed in Hours.
- In Minutes is displayed in min.
Rounding rules
- Number displays use up to 2 decimal places in the calculator UI.
Version history
1.0.0 - 2026-05-06
Generated accuracy and testing page from the current battery-life-calculator calculator definition.
Change log
2026-05-06
Published default regression test documentation and metadata fallbacks for Battery Life Calculator.
Calculator transparency
Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.