BAT_EMERGEN_THR does not show up in QGC as an editable parameter for me. I HAVE seen it show up once when using the search tool in QGC for something else, this is what caused me to make this post originally, however, I cannot find it again in QGC.
Meanwhile,I guess we should set this parameter in our config.txt file on the SDcard? Is there harm in setting it to a negative number? It is conceivable our battery could report 0% but still have a little juice left to make it back.
Adding to my reply above. Someone helped me look through the code and this is what we decipher for the “COM_LOW_BAT_ACT” setting. It looks like if we set COM_LOW_BAT_ACT =1 then we will get another warning at BAT_EMERGEN_THR instead of auto-land. This seem like our desired behavior. Are we reading this right?
COM_LOW_BAT_ACT = 0
BATTERY_WARNING_LOW condition: “LOW BATTERY, RETURN TO LAND ADVISED” warning.
BATTERY_WARNING_CRITICAL condition: “CRITICAL BATTERY, RETURN TO LAUNCH ADVISED!” warning.