For how long should you hold the AUX BAT test switch to perform a test?

The AUX BAT test switch is used in the T-6A to check the status of the auxiliary battery. Holding the switch for the appropriate duration is critical to ensure an accurate test of the battery's function. In this case, holding the switch for 5 seconds is the correct duration. This timeframe allows the system to properly evaluate the battery's status as it enables enough time for the onboard systems to process and respond to the test request.

If held for a shorter duration, the system may not fully engage, potentially providing an incomplete or incorrect result. Conversely, extending the duration unnecessarily does not yield additional information, but might cause confusion regarding whether the test was actually successful. Understanding this timing is essential for performing accurate maintenance checks and ensuring the equipment remains in good working order.