Critically Low Battery

Critically Low Battery is defined as total battery percentage under 15% and means the UAS is in danger of not having enough remaining endurance to safely return to home and land (RTL).

Automated Failsafe: From the factory your IF800 Tomcat has a Critically Low Battery failsafe enabled that will automatically initiate an auto RTL flight mode at 15%, regardless if the aircraft was in a manual or automated flight mode prior to this. The Pilot can switch the flight mode out of RTL after the failsafe was initiated, however the aircraft will not automatically initiate RTL failsafe again. If in doubt, manually switch into RTL mode or manually fly the aircraft back to home and land in Position Hold flight mode.

Flying with Critically Low Battery: The Pilot in Command’s main objective needs to be returning the aircraft to the nearest pre-designated landing zone or home position. The aircraft should be brought to a low altitude as quickly as possible. If the aircraft is approaching Emergency Low Battery the Pilot in Command should adjust the flight path over clear open ground.

Automated flight modes may use slower velocity setpoints than the aircraft's max speed. If in doubt, switch to manual Position Hold flight mode to land faster.

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