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RTL Triggered after 2 1/2, 3 mins of flight

Posted by Sandy Sound on December 23, 2014 at 6:33am

Hi guys,

RTL is triggering automatically and I don't know why - its not because of low battery or Radio signal loss...

Any ideas? I have attached logs of the last two flights it happened.

Im flying Pixhawk 3DR 2014 Quad kit Stock with Tarot 2D Go Pro Gimbal.

Cheers,

Sandy

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Replies

Tom Mahood December 23, 2014 at 6:47am

You have RTL enabled for your battery at a voltage of 10.5 volts and a mAH of 983. It appears you tripped it based upon voltage.
- Sandy Sound > Tom Mahood December 23, 2014 at 6:57am
  
  Hi Tom - Thanks for that - I will recalibrate my voltage sensor as the battery is nowhere near that. Thanks man!
  - Sandy Sound > Sandy Sound December 23, 2014 at 7:21am
    
    Do you think those are conservative levels for the battery failsafe? I want to leave some room for RTL mode to complete without damaging the battery...
    - Tom Mahood > Sandy Sound December 23, 2014 at 9:01am
      
      Personally I try to be in process of actually landing when I hit 3.5 volts per cell (10.5 for 3S). 10.8 volts gives some margin to return. Since I use an OSD I monitor the voltage myself and have my battery failsafes turned off.

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