External Power Supply

Product: [Bebop/Bebop2]
Product version: [X.X.X]
SDK version: [X.X.X]
Use of libARController: [YES/NO] (Only for ARSDK)
SDK platform: [iOS/Android/Unix/Python…]
Reproductible with the official app: [YES/NO/Not tried]

hi, i am developing a drone application with the bebop 2… and i would like to know if its secure tu connect an external power supply insted of the battery for desktop use. Also… pin connections if can be done.
i am testing the communication and others things in the drone, and would like to not waste the battery cicle count.