Probably a stupid question but…

[Tmcfarland]

Returning to the hobby after many years. My question: battery connects to esc. Esc connects to motor and has a lead to power the receiver. If one was flying and drained the battery does the esc stop power to the motor and save enough to power the receiver so you can get back on the ground? Or does the whole system shut off at once?

 

[Jarron]

Yes it still sends power to the receiver after Low Voltage Cutoff, but ideally you'd land well before your motor stops spinning. Otherwise you'll hurt your battery.

 

[jure]

normally ( in absence of ESC failure ) the motor drive shuts down first , and the BEC continues working as you say.

 

[Hoqiam]

In my flights, I find that the flight power will reduce noticeably before loss of power occurs.
This allows good power control during landing.

Tom Strom

 

[Wayne]

Tom this will vary depending on the brand and settings of the ESC.

Depending on the electrical loads, it is best practice to land a little early before the voltage cut kicks in. It is less abuse on the battery pack and you batteries will live a longer life, giving more flight hours.

Pack voltage and or amp hours can be monitored via telemetry on most decent radios these days and alerts can be set to let us know when we should land. Takes the guesswork out of this task.

 

[Tmcfarland]

Tom this will vary depending on the brand and settings of the ESC.

Depending on the electrical loads, it is best practice to land a little early before the voltage cut kicks in. It is less abuse on the battery pack and you batteries will live a longer life, giving more flight hours.

Pack voltage and or amp hours can be monitored via telemetry on most decent radios these days and alerts can be set to let us know when we should land. Takes the guesswork out of this task.

Thanks. I was wondering about that. So on a new X14 in telemetry there is a setting to monitor the battery? I will look for it.

 

[Jarron]

Thanks. I was wondering about that. So on a new X14 in telemetry there is a setting to monitor the battery? I will look for it.

That’ll require a separate sensor, this guy:

FrSky FLVS-ADV - Lipo Voltage Sensor

The FrSky Smart Port Lipo Voltage Sensor plugs into the balance port of your battery pack and allows you to monitor pack voltages while flying. No more guessing about your battery condition.

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