Translations:KAVAN V20 + ETHOS™ - User manual/981/en

RTC voltage

RTC battery is providing the energy for the internal Real Time Clock circuit. The "RTC Battery is Low" message is displayed when the RTC battery voltage check is enabled and the RTC button battery is below 2.5 V, the default RTC battery threshold. It can be turned OFF until the RTC battery is replaced, but should not be turned OFF indefinitely. Real time is used in data logging and invalid time will cause difficulty in reading the logs, especially in distinguishing flight sessions.