Pinch the top and bottom tabs of the battery case, pull the battery straight out to remove it.
The metal connectors form a stiff mechanical connection with the battery, you will need quite a bit of force to remove the battery. Hold the Phantom Vision+ with one hand and remove the battery with the other.
Determine if the propellor is clockwise or counter-clockwise rotating.
Each arm is labeled with a rotation icon that shows the direction of propellor rotation.
If this icon is missing or you can't read it, you can determine the direction of rotation by examining the propellor.
A clockwise rotating propellor pushes air down while rotating clockwise, and the opposite is true for a counter-clockwise rotating propellor, and the propellor blade slopes up in the direction of rotation.
Do not attempt to fully remove the top shell. The GPS cable is still attached to the mainboard, avoid lifting the case too high or you may damage this connection.
This guild will also largely work for the Phantom 3 (Adv./Pro) with the difference being that the phillips-head screws are T7s in the P3, and the 2mm Allen/Hex bolts are T8s.