When flying on battery power only, what is the approximate battery endurance?

The approximate battery endurance when flying on battery power only is about 22 minutes. This duration is based on the typical consumption rate of the aircraft's systems when running solely on battery power. The A320 is equipped with a main battery that provides electrical energy to essential systems, so understanding this limit is crucial for pilots managing electrical power during flight, especially in case of emergencies or in situations where the main power sources are not available.

This battery endurance must be factored into the flight planning and operational considerations, ensuring that pilots are prepared for scenarios that could require reliance on battery power. Knowledge of how long the battery can sustain essential systems allows pilots to make informed decisions about their actions and prepares them for possible power outages throughout the flight.