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187 - EASA Drone A2 License - If your drone's battery indicates it has 30% charge remaining, but the voltage drops drastically as soon as you push the throttle forward, what is happening?

Question 187 - Flight performance and planning - EASA Drone License A2

The motors are becoming more efficient
The telemetry software is stuck
The battery is likely experiencing severe voltage sag due to high internal resistance (age/damage) or cold temperatures, meaning it cannot provide the necessary current
The drone is entering a hyper-lapse video mode

Training tests and timed exam simulations EASA Drone License A2