What is the approximate life of the auxiliary battery?

The auxiliary battery is designed to provide power to essential systems in the event of a primary power failure. Its approximate life span of one hour ensures that critical functions can continue operating, which is especially vital during emergencies. The one-hour duration allows for enough time to manage a return to normal operations or to land safely if needed.

This consideration of time also balances the need for the battery to be lightweight and easily replaceable while still providing sufficient power for key systems. Having a guideline of about one hour helps pilots understand how long they can rely on the auxiliary battery and aids in planning for situations where a loss of primary power could occur. Such knowledge is crucial for ensuring safety and effective decision-making during a flight.