How to use your power bank to power your goggles (HDZero, DJI, Walksnail, HDO2, Orca, Skyzone, etc.)

Even if you have analog or digital goggles (DJI, Fatshark, HDZero, Walksnail, Skyzone, Eachine, Orqa, BetaFPV, etc.), an essential aspect is the power source of your goggles. In this short video, I present a method to power your goggles from an external battery (a power bank) used to recharge your smartphone.