Why does the drone slowly lose altitude without touching the controls?

[AdminForo]

Why does the drone slowly lose altitude without touching the controls: When the DJI Mavic 4 Pro slowly loses altitude without the pilot having activated the controls, it may be due to a combination of factors affecting vertical positioning. One of the most common is a temporary loss of GPS signal or interference with the vision stabilization system, especially when flying indoors or over surfaces with poorly defined patterns. In these cases, the drone stops receiving reliable data about its position and may begin a gradual descent as an automatic precaution.

Another possible factor is the natural behavior of the system in ATTI mode, where the drone does not use GPS positioning or downward vision, but instead hovers only with barometer and gyroscope data. In this mode, changes in atmospheric pressure or thermal currents can cause a slow descent without pilot intervention. The Mavic 4 Pro attempts to compensate for these variations, but without GPS, it cannot maintain the exact altitude with the same precision as in assisted modes.

Battery status should also be taken into account. If the battery level is low, the system may reduce motor power to conserve energy, which could be interpreted as a slight loss of altitude. Additionally, if there are weight imbalances or miscalibrated propellers, the drone may exhibit a slight downward tilt, which, over time, translates into a gradual descent. This type of behavior is often accompanied by visual or audible alerts in the app, indicating that the drone should land or change flight mode.

In this situation, it is best to switch to a flight mode that uses GPS stabilization if it is not active, check the environment to ensure the lower sensors are functioning properly, and check the battery status. Understanding how each flight mode affects the drone's vertical stability allows for quick and effective decisions in flight. The Mavic 4 Pro is designed to automatically compensate for many variables, but pilot awareness remains key to safe and precise operation.