we've got -15 today and since the weather is very calm I tried to finally run autotune on my newly built quad.
I have the following failsafe settings for my 5000 mAh 3S battery:
* FS_BATT_VOLTAGE = 10.5
* FS_BATT_MAH = 1000
I warmed up battery before flight.
The thing is that battery failsafe was triggered after about 6 minutes (voltage drop) while the battery was drained only for 30% according to the charger.
My question is if I should lover (or even turn off) FS_BATT_VOLTAGE and rely only on FS_BATT_MAH? What will happen in this case if voltage under load drops even lower while there still is enough capacity in battery?