10-11-2016, 06:20 PM
One better option is telemetry based on current over time. FrSky has several telemetry gizmos which can feed current info back to a Taranis (or Horus!), thus enabling a warning to fire when the pack is down to say 30% full.
Some fancy ESCs can do cutoff based on capacity, rather than voltage. For example, the ESC can be configured to pulse the motor after it observes 2000mAh being drawn from the battery. (True, it would be a pain to reconfigure every time you flew with a bigger or snaller pack.)
Some fancy ESCs can do cutoff based on capacity, rather than voltage. For example, the ESC can be configured to pulse the motor after it observes 2000mAh being drawn from the battery. (True, it would be a pain to reconfigure every time you flew with a bigger or snaller pack.)