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2.4. Current Consumption

Quick Theory​

Current consumption calculations estimate average and peak current, and check battery and ESC limits using the following formulas:

Average Current Calculation​

Iavg=PmodeVavgI_{avg} = \frac{P_{mode}}{V_{avg}}

Peak Current Calculation​

Ipeak≈1.4×IavgI_{peak} \approx 1.4 \times I_{avg}

SymbolDescriptionUnit
IavgI_{avg}Average CurrentA (Amperes)
PmodeP_{mode}Flight Mode PowerW (Watts)
VavgV_{avg}Average VoltageV (Volts)
IpeakI_{peak}Peak CurrentA (Amperes)

The Current Consumption Calculator offers Standard and Advanced options for users to choose from.

Regardless of the option selected, the current consumption calculation results provide the following information:

  • Average Current [A]
  • Peak Current [A]
    • Average Current Per Motor
    • Peak Current Per Motor
    • Discharge Rate (C-rate)
    • Required Capacity for 10-min Flight
  • Estimated Flight Time
  • Recommended ESC
  • Reliability and Design Risk

2.4.1. Standard​

Figure 1. Current Consumption Calculator: Standard

Input Parameters

  • Drone Weight (kg)
  • Drone Type
  • Battery Cells: Based on Li-Po battery, 3.7V per cell
  • Capacity (mAh): Based on Li-Po battery
  • Flight Mode
  • System Efficiency: Power efficiency

2.4.2. Advanced​

Figure 2. Current Consumption Calculator: Advanced

Input Parameters

  • Drone Weight (kg)
  • Motor Count (manual adjustment)
  • Drone Type
  • Battery Cells: Based on Li-Po battery, 3.7V per cell
  • Capacity (mAh): Based on Li-Po battery
  • Flight Mode
  • Rotor Diameter (inch)
  • Air Density
  • Figure of Merit (FM): Coefficient representing propeller performance efficiency

    To learn about propeller performance using CAD, please refer to Advanced Simulation: CFD Analysis.

  • System Efficiency: Power efficiency

Need Assistance or Have Questions?

Frequently Asked Questions: FAQ Link

Support Inquiries: support@everysim.io