I have been flying this copter for about a year without any major tweaks. I took it out to the desert and flew it for about 4 min and all of a sudden it lost power and came to a crash. I am not entirely sure how to read the logs. Can anyone shed some light on what happened?
I was flying from Stab to Arco mode like I always do. I disabled Compass since it seems to have its issues. I have flown like this for the past few months or so.
Thank you all.
Replies
Looks pretty simple.
you fly well past low battery warning, at the end, ThrIn and ThrOut increase (as you try to prevent crash) - but the current drop.
It fails when battery is at 10.13v (3,3volt/cell if equal cells) (if well calibrated, and after the crash with "no" load voltage barely raises to 11.1v (3,7v/cell))
Even before the crash - 9.67 volt is logged, 3,2v/cell
Thank you so much Andre for the explanation. I kinda figured that by looking at the graphs, but I just wanted to make sure.
Thank you again Andre.
depending on your ESC's it is possible that you have a low-voltage cutoff /battery protection, it's best to disable such on a multirotor.
Calibrate voltage sensing, and/or add a battery monitor that beeps on low voltage to avoid same problem in the future.
I will try that out and report back when I rebuild her. Thank you all