Pourquoi les hélices de drones affectent-elles la sélection de la batterie?

In drone systems, the propeller, motor, and battery form an interdependent “power triangle.” Propeller parameters—such as size, pitch, material, and number—directly affect power requirements, which in turn dictate battery specifications including capacity, voltage, discharge rate (C-rating), and energy density.

Large or high-pitch propellers demand high discharge rates and larger capacities, suited for applications like agricultural or logistics drones. Smaller, low-pitch propellers allow for lower C-ratings and smaller batteries, ideal for racing or aerial photography.

The number of blades influences voltage needs: multi-rotor setups often require high-voltage batteries (e.g., 6S), while fewer rotors may operate sufficiently on 3S or 4S. Propeller efficiency and weight also affect battery choice—lightweight, efficient designs permit standard batteries, whereas inefficient or heavy setups necessitate high-energy-density options.

Typical Application Scenarios

✔ Scenario 1: High-Speed FPV Drones

• Propellers: 5-inch high-pitch props
• Battery Recommendation: High discharge rate (45C–65C), high voltage (4S), e.g., 4S 1500mAh 60C
• Caractéristiques: Léger, fast response, suitable for high-speed maneuvers and rapid acceleration

✔ Scenario 2: Agricultural Plant Protection Drones

• Propellers: 16-inch large blades for high-load spraying tasks
• Battery Recommendation: High capacity (10000mAh+), medium discharge rate (20C–30C), high voltage (6S)
• Caractéristiques: Supports long-duration heavy-duty operations, balancing power and endurance

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