Hi everyone - I'm not a drone pilot but found a DJI Phantom on the street after the neighbors moved out. Its just the drone with battery and gimbal camera (no controller or other accessories). First question is - how do I know what series Phantom I have and second: without a controller I dont know if it flies - looking for suggestions as to how to ascertain that it does/doent. The battery says "phantom 4" but I dont know if batteries for 3 and 4 series are interchangeable. Thanks in advance pilots!