تعليق رسمي
The low battery warning is just a warning and makes the remote beep as a heads up to the pilot. The aircraft knows how much battery it needs to get home and compares that with how far away and how high above the landing point it is and triggers the return to home when it absolutely needs to. It doesn't have anything to do with the battery warning set point.
https://support.dronesmadeeasy.com/hc/en-us/articles/206104736-Flying-Multi-Battery-Missions
As noted in the link above you can set a timer or push the return to home button at any point.