Hi I'm trying to find out the amp draw for my hexacopter to find out if i can put a 40 amp voltage telemetry monitor in my hexacopter
Here is my setup:
3d Robotics 880kv motors
3d Robotics 20 amp esc's
5000 mah 3 cell battery with 30C rating
Here is the Meter i want to use http://www.alofthobbies.com/sp-40a.html
In my eyes, there are two options:
First you could simply look up the specifications of the motors you use and see what their maximum current is.
Second you could simply measure it. Remove the propellers, give full throttle and measure with a current meter.
Check this out for battery/ power related calculations, you should get information on power draw and how to compute it correctly.
It is obvious that with such a motor configuration 40 amps is too low.
According to eCalc (http://www.ecalc.ch/xcoptercalc.php?ecalc) you would consume 65 amps at full throttle (assuming your AUW weight is about 4000g).
Just take a 90a attopilot or the 3DR PM module and you will be fine.
That's what I meant.