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Engineering · power

A power budget that keeps unknowns visible.

Select researched candidates and vary capacity, voltage, operating mode, communications, and sensor duty cycle. Every result is derived—not a physical measurement.

Hardware package
Candidate components
Estimated average load4.09 WDERIVED · not measured
Estimated peak load12.13 WUnknown if any selected peak is unknown
Estimated runtime14.07 h20% reserve; conversion/aging excluded
Energy per hour4.09 WhSame numeric value as average watts
Reserve margin14.40 Wh20% planning reserve
Input current0.3412 AAt selected nominal voltage

DERIVED from component datasheets plus visible assumptions. No output is field validated, measured battery life, or actual charging performance.

Model boundary

Nameplate, assumption, and measurement are different states.

The calculator uses manufacturer values where available, reserves 20% of battery nameplate energy, and refuses to complete totals with unknown component power. Conversion loss, temperature, aging, cable loss, and workload still require a real bench test.

usable_Wh = nameplate_Wh × 0.80
runtime_h = usable_Wh ÷ average_load_W
source_mode = DERIVED · validation = false