What actions should be taken if either battery is below the minimum voltage?

If either battery is below the minimum voltage, the appropriate course of action is to replace the battery if one is available, or to open the battery circuit breaker. This response is crucial for maintaining the integrity and reliability of the power system in the aircraft. A battery operating below its minimum voltage may not provide the necessary power, which could jeopardize operations or lead to system failures.

Replacing the battery ensures that the aircraft is equipped with a functional power source, while opening the circuit breaker helps to safeguard the electrical system by preventing further strain on a failing battery. This action is essential in maintaining safety standards and ensuring that all aircraft systems can operate effectively. Proceeding with operations as normal would ignore potential risks, while recharging the battery may not be an immediate fix if the battery is permanently damaged. Reporting the issue without taking direct action could lead to operational delays, so acting swiftly to address the problem is vital.