So I just received my SkyZone goggles and realized I need a power source/battery pack. The manual says it'll take DC 7-28V/1A input and consumes 12V 4.3W. It comes with a cable to connect one end to the goggles and the other to a battery or power adapter (red plug). Any pointers to an appropriate battery setup for FPV goggles would be appreciated. Thx!