DJI MINI 4 PRO INTELLIGENT FLIGHT BATTERY (PRE-OWNED). Provides a max flight time of 34 minutes*, allowing you to fly and create freely with peace of mind. * Measured in a controlled test environment. Specific test conditions are as follows: flying forward at a constant speed of 21. 6 kph in a windless laboratory environment at 20 meters above sea level, in photo mode (without photo taking operation during flight), with Obstacle Avoidance Action set to Off, and from 100% battery level until 0%. Results