What is the acceptable range for external power volts for the King Air 350?

The acceptable range for external power volts for the King Air 350 is between 28.0 and 28.4 volts. This range is crucial as it ensures that the electrical systems of the aircraft receive adequate power without risking damage. Specifically, consistent voltage within this range helps to maintain the operation of avionics, engines, and other critical systems while on the ground when external power is being utilized. Voltage outside this specified range could lead to operational issues or equipment failure, highlighting the importance of adhering to these established limits.