After air unit is used one time and battery is unplugged and plugged back in camera video is lost until I cool the air units way down below 50 degrees or let them sit for many days at 72 degree Fahrenheit . I have two fpv air units on two different quads 1 6s feeding 9.5 volts the other 4 s feeding 9.4 volts to fpv air unit. One air unit is old one is new all are at newest ver.