Power Budget Calculator

Add every component on your rail, set active/sleep current and duty cycle, and get a duty-cycle-weighted battery life estimate with chemistry-aware voltage sag warnings.

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Project name

Battery

Chemistry

Capacity (mAh)

Nominal voltage (V)

Flat discharge curve, good energy density. Most cylindrical cells are rated for ~1C continuous; exceeding it accelerates sag and heat.

Components

NameVoltageActiveSleepDuty %QtyAvg current

Name

Voltage (V)

Active (mA)

Sleep (mA)

Duty (%)

Qty

Avg current0.00 mA0.0% of budget

Power Budget Summary

Peak active current: 0.00 mA
Sleep current: 0.00 mA
Avg current (duty-cycled): 0.00 mA
Peak C-rate: 0.00C

Estimated battery life

∞

Usable capacity ≈ 1700 mAh after derating