Reset alternator/generator by turning their switches or circuit breakers off, then on again. If electrical power is needed. . It is critical to understand that if the alternator has failed in flight, and you are operating on battery power only, it will drop offline at some point when its voltage drops below 9 volts. If your battery is completely dead, or almost so, it should be fully recharged before taking off. The. . Redundant electrical systems are designed to handle failures, with backup generators and emergency devices like the ram air turbine providing power in critical situations. On the ground, if all main power sources are lost, the aircraft's battery can supply vital systems for a limited. . Depending on the type of battery, the rectifier will shut down the DC output to the battery when the voltage level is between 14 and 15. There are some considerations which will enable the controller, not only to provide as much. . Your aircraft battery has two main jobs: supplying power to start your engine and providing backup electrical power if your main generation source (the alternator or generator) fails during flight.
