How to discharge battery of drones

How to discharge battery of drones...

How to charge batteries of FPV screen

How to charge batteries of FPV screen...

Content and function of the sprayer d

Content and function of the sprayer drone...

Remote controller function

Remote controller function...

Unfold the sprayer drone

Unfold the sprayer drone...

sequence of power on and power off

sequence of power on and off...

how to use battery buzzer

how to use battery buzzer...

How to do GPS calibration

How to do GPS calibration...

no-load trial flight

no-load trial flight...

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