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©
2018 DJI All Rights Reserved.
13
Mavic Air
User Manual
Smart RTH
If the GPS signal is suciently strong, Smart RTH can be used to bring the aircraft back to the Home
Point. Smart RTH is initiated either by tapping in the DJI GO 4 app (and following the on-screen
instructions) or by pressing and holding the RTH button on the remote controller.
Smart RTH can be exited by tapping in the DJI GO 4 app or by pressing the RTH button on the
remote controller.
Low Battery RTH
Low Battery RTH is triggered when the Intelligent Flight Battery is depleted to a point that may aect the
safe return of the aircraft. Return home immediately or land the aircraft promptly when prompted. DJI GO
4 will display a warning when a low battery level warning is triggered. The aircraft will automatically return
to the Home Point if no action is taken after a ten-second countdown. The user can cancel the RTH
procedure by pressing the RTH button or Flight Pause button on the remote controller.
If the RTH procedure is cancelled following a low battery level warning the Intelligent Flight Battery may not
have enough charge for the aircraft to land safely, which may lead to the aircraft crashing or being lost. The
thresholds for the battery level warnings are automatically determined based on the aircraft’s current altitude
and distance from the Home Point. Low Battery RTH will only be triggered one time during each ight.
Return to Home
The Return to Home (RTH) function brings the aircraft back to the last recorded Home Point. There are
three types of RTH: Smart RTH, Low Battery RTH, and Failsafe RTH. This section describes these three
scenarios in detail.
GPS
Description
Home Point
If a strong GPS signal was acquired before takeoff, the Home Point is
the location from which the aircraft launched. The GPS signal strength is
indicated by the GPS icon ( ). The Aircraft Status Indicator will blink
green quickly when the Home Point is recorded.
The colored zones and markers on the DJI GO 4 battery level indicator bar reflect the
estimated remaining flight time. They are automatically adjusted according to the aircraft’s
current location and status.
If the current battery level can only support the aircraft long enough to descend from its
current altitude a critically low battery level warning will be triggered and the aircraft will
descend and land automatically. This procedure cannot be cancelled. If there is danger of
collision occurring, push the throttle up and try to navigate away.
If the battery level is sucient the battery level indicator bar in the DJI GO 4 app displays the
estimated remaining ight time based on current battery level.
Critically low battery level warning
(Red)
Low battery level warning
(Yellow)
Battery level is
sufficient (green)
Remaining flight time
Charge required to
return to Home Point
12:29
DJI GO 4 Battery level Indicator Bar
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